---
visibility: public
Id.: C-2026-5252
Version no: 1
Publication Date: '2026-07-27'
Latest Revision: null
Ext. Link: null
Publication Status: Adopted
Language: English
NoteType: Guidelines
aliases:
  - C(2026) 5252
  - Commission guidance on the Cyber Resilience Act
  - CRA Guidance
tags:
  - Privacy
  - Cybersecurity
  - Cyber-Resilience-Act
  - CRA
  - European-Commission
icon: "\U0001F1EA\U0001F1FA"
Authority: European Commission
title: >-
  Commission guidance on the application of Regulation (EU) 2024-2847 (Cyber
  Resilience Act)
modified: null
---

# Commission guidance on the application of Regulation (EU) 2024/2847 (Cyber Resilience Act)

Brussels, 27.7.2026 - C(2026) 5252 final

ANNEX - Communication to the Commission - Approval of the content of the draft Communication from the Commission - Commission guidance on the application of Regulation (EU) 2024/2847 (Cyber Resilience Act)

## 1 Introduction

### 1.1 The Cyber Resilience Act

1. Regulation (EU) 2024/2847 of the European Parliament and of the Council of 23 October 2024 on horizontal [[cybersecurity]] requirements for [[product with digital elements|products with digital elements]] and amending Regulations (EU) No 168/2013 and (EU) 2019/1020 and Directive (EU) 2020/1828 (the Cyber Resilience Act)[^1] entered into force on 10 December 2024. The Regulation aims to strengthen the EU's approach to [[cybersecurity]], address cyber resilience at EU level and improve the functioning of the internal market by laying down a uniform legal framework for essential [[cybersecurity]] requirements for placing [[product with digital elements|products with digital elements]] on the EU market, as well as during the lifecycle of a [[product with digital elements]].

2. The Cyber Resilience Act (CRA) is built upon the EU's New Legislative Framework (NLF) set out in Regulation (EC) No 765/2008 of the European Parliament and of the Council of 9 July 2008 setting out the requirements for accreditation and market surveillance relating to the marketing of products and repealing Regulation (EEC) No 339/93 and Decision No 768/2008/EC of the European Parliament and of the Council of 9 July 2008 on a common framework for the marketing of products, and repealing Council Decision 93/465/EEC[^2].

3. Market surveillance and enforcement is carried out by national [[market surveillance authority|market surveillance authorities]]. [[product with digital elements|Products with digital elements]] that fall within the scope of the CRA are covered by Regulation (EU) 2019/1020 of the European Parliament and of the Council of 20 June 2019 on market surveillance and compliance of products and amending Directive 2004/42/EC and Regulations (EC) No 765/2008 and (EU) No 305/2011. The Commission and the European Union Agency for [[cybersecurity|Cybersecurity]] (ENISA) support economic [[operator|operators]] and Member States in the application of the CRA.

### 1.2 Purpose of the guidance

4. Article 26(1) of the CRA requires the Commission to publish guidance to assist economic [[operator|operators]] in applying the Regulation, with a particular focus on facilitating compliance by [[microenterprise|microenterprises]] and small and medium-sized [[enterprise|enterprises]] (SMEs). Article 26(2) sets out minimum aspects that should be addressed in the guidance. These include: (i) the scope of the CRA (particularly [[remote data processing]] solutions and [[free and open-source software]]); (ii) the notion of 'support periods'; (iii) the interplay between the CRA and other EU legislation; and (iv) the concept of '[[substantial modification]]'.

5. On 3 December 2025, the Commission published a series of frequently asked questions (FAQs), which are intended to help economic [[operator|operators]] prepare for the implementation of the CRA[^3].

6. This guidance is intended to help economic [[operator|operators]] comply with the CRA and to support the activities of [[market surveillance authority|market surveillance authorities]], [[notifying authority|notifying authorities]] and [[notified body|notified bodies]], with a view to ensuring the harmonised enforcement of the CRA across the Union. This guidance is not intended to cover the CRA in its entire scope, but rather to provide clarifications on the rationale of certain key provisions and how they could be implemented in practice. This guidance concerns the CRA and is not applicable to other EU laws.

7. Stakeholders were extensively consulted in the preparation of this guidance, including the Expert Group on [[cybersecurity|Cybersecurity]] of [[product with digital elements|products with digital elements]][^4] and through a public consultation held between 3 March and 13 April 2026[^5].

8. This guidance is not binding for economic [[operator|operators]] or other actors [[subject]] to the CRA. An authoritative interpretation of the CRA may only be given by the Court of Justice of the European Union. Nevertheless, these guidelines set out the Commission's interpretation of the CRA, with a view to supporting compliance and contributing to the effective implementation of the Regulation. Furthermore, the guidance contains a number of examples to illustrate the application of specific provisions. However, these examples are not intended to replace a case-by-case assessment, which will always be necessary to account for the specifics of each individual case.

9. In line with Article 26 of the CRA, the Commission may consider issuing further guidance, including guidance targeted at [[manufacturer|manufacturers]] [[subject]] to the CRA and other Union harmonisation legislation or to other related Union legal acts. This guidance may, for example, address questions on interplay between the CRA and Regulation (EU) 2024/1689 laying down harmonised rules on artificial intelligence (AI Act), and Regulation (EU) 2022/2554 on [[digital operational resilience]] for the financial sector (DORA).

## 2 Scope

### 2.1 Placing on the market

10. The CRA applies to [[product with digital elements|products with digital elements]] that are made available on the EU market. The concept of [[making available on the market]] is defined in Article 3(22) of the CRA as 'the supply of a [[product with digital elements]] for distribution or use on the Union market in the course of a commercial activity, whether in return for payment or free of charge'. In accordance with Article 3(21), a [[product with digital elements]] is placed on the EU market the first time it is made available.

11. The latest edition of the 'Blue Guide on the implementation of EU product rules' published in 2022 (henceforth, 'the Blue Guide')[^6], provides guidance facilitating the understanding of the EU product rules and their uniform application across the different sectorial legal frameworks aligned to the new legislative framework (NLF), such as the CRA. The Blue Guide indicates that the concepts of '[[placing on the market]]' and of 'making available' are to be understood as referring 'to each individual product, not to a type of product, and whether it was manufactured as an individual unit or in series' (Section 2.3).

12. For more 'traditional' [[product with digital elements|products with digital elements]] covered by the NLF, such as [[hardware]] in the form of machinery or radio equipment [[product with digital elements|products with digital elements]], the concept of 'placement on the market' is well established, and the Blue Guide provides further guidance to clarify when such products are considered to be [[placing on the market|placed on the market]]. The 'summary examples' contained in the Blue Guide's Section 2.12 provide further examples of the concept of '[[placing on the market]]'.

13. However, given the nature of intangible [[product with digital elements|products with digital elements]] such as standalone [[software]], further guidance is needed on when such [[product with digital elements|products with digital elements]] are considered [[placing on the market|placed on the market]]. Once the [[software]]'s manufacturing phase is complete and the [[product with digital elements]] is offered to prospective [[user|users]] in the EU market, its [[manufacturer]] can be regarded as having manufactured multiple copies of the same [[software]] [[product with digital elements]] and having supplied them for distribution or use. In fact, unlike tangible [[product with digital elements|products with digital elements]], standalone [[software]] is not [[subject]] to physical production or stock limitations: each act of making the [[software]] available for download or distribution results in a new identical copy being created for the [[user]]. As long as this version of the [[software]] is not modified in a way that affects compliance with the CRA, the placing on the EU market is to be considered to have occurred at the moment of the first offering for distribution or use. The possibility of subsequent download or distribution of this version of the [[software]] [[product with digital elements]] is therefore to be regarded as an instance where this [[software]] [[product with digital elements]] is made available[^7].

14. Therefore, a standalone [[software]] [[product with digital elements]] should be considered to have been [[placing on the market|placed on the market]] when its manufacturing phase is complete and that [[software]] is first supplied for distribution or use on the EU market in the course of a commercial activity. The [[manufacturer]] should be considered to have [[placing on the market|placed on the market]] multiple copies of the same [[software]] [[product with digital elements]] at the same time. Therefore, while multiple copies of the same [[software]] remain individual [[product with digital elements|products with digital elements]], they are considered to be [[placing on the market|placed on the market]] at the same time, regardless of when possession or use of each individual copy is transferred to another natural or legal person. At the same time, where the [[manufacturer]] makes [[software]] available in different variants that differ in their included [[component|components]], configurations or enabled functionalities (for example, builds for different operating systems or bundles with differing feature sets), those variants cannot be regarded as multiple copies of the same [[software]] [[product with digital elements]]. Therefore, they should be treated as distinct [[product with digital elements|products with digital elements]] for the purposes of [[placing on the market]].

Example 1: On 1 January 2028, company A first supplies for distribution via its website version 1.0.0 of its [[software]] X. On the same day, [[customer]] 1 purchases a copy of version 1.0.0 of [[software]] X. On 15 January 2028, [[customer]] 2 purchases a copy of version 1.0.0 of [[software]] X. Both copies of version 1.0.0 of [[software]] X are [[placing on the market|placed on the market]] on 1 January 2028.

15. Given the iterative nature of [[software]] development, it should be further clarified that subsequent iterations of a [[software]] [[product with digital elements]] are considered as newly [[placing on the market|placed on the market]] when those iterations qualify as a '[[substantial modification]]' of a [[software]] [[product with digital elements]] already [[placing on the market|placed on the market]], as indicated in recital 41 of the CRA. Iterations that do not qualify as [[substantial modification|substantial modifications]] do not require the [[manufacturer]] to perform a new [[conformity assessment]] procedure and therefore do not modify that [[software]]'s date of placement on the market. For more guidance on the concept of [[substantial modification|substantial modifications]] see Section 4 [[substantial modification|Substantial modifications]].

Example 2: On 1 January 2028, company A first supplies for distribution via its website version 1.0.0 of [[software]] X. On the same day, [[customer]] 1 purchases a copy of version 1.0.0 of [[software]] X. On 15 January 2028, company A issues an updated version 1.0.1 of [[software]] X that does not constitute a [[substantial modification]]. On 30 January 2028, [[customer]] 2 purchases a copy of version 1.0.1 of [[software]] X. Both copies of version 1.0.0 and 1.0.1 of [[software]] X are considered to be [[placing on the market|placed on the market]] on 1 January 2028.

16. The guidance laid down in points 13, 14 and 15 applies exclusively insofar as the [[product with digital elements]] is standalone [[software]]. This is not the case, for example, when the [[software]] is combined with [[hardware]], as discussed in Section 2.4 Combination of [[hardware]] and [[software]] forming a product.

### 2.2 Software as a product with digital elements

17. Article 3(1) of the CRA defines a [[product with digital elements]] as 'a [[software]] or [[hardware]] product and its [[remote data processing]] solutions, including [[software]] or [[hardware]] [[component|components]] being [[placing on the market|placed on the market]] separately'. Such [[product with digital elements|products with digital elements]] fall within the scope of the CRA where their [[intended purpose]] or [[reasonably foreseeable use]] includes a direct or indirect logical or physical [[data]] connection to a device or network.

18. The CRA therefore can cover a range of [[product with digital elements|products with digital elements]], including: (i) standalone [[software]], such as apps and computer programs, whether digitally or physically distributed; (ii) [[hardware]] with embedded [[software]] (e.g. Internet-of-Things devices, laptops, tablets); (iii) standalone [[hardware]] (e.g. integrated circuits, motherboards); and (iv) any combination of [[hardware]] and [[software]] supplied separately but intended to operate together.

19. Standalone [[software]] therefore falls in scope of the CRA where it is [[placing on the market|placed on the market]] as a [[product with digital elements]]. It is helpful to distinguish between [[software]] [[product with digital elements|products with digital elements]] that are [[subject]] to the CRA and the remote provision of services that do not fall in scope of the CRA.

20. For [[software]] to fall within the scope of the CRA, a [[software]] [[product with digital elements]] must be provided to a [[user]], obtained by that [[user]] and operated on, or as part of, an [[electronic information system]] on the [[user]]'s side. [[software|Software]] that is downloaded, installed or otherwise supplied to the [[user]] and that executes on the [[user]]'s [[electronic information system]] meets these criteria, including for example where it takes the form of a browser extension or an application developed using web technologies but supplied for local execution.

21. By contrast, [[software]] that executes remotely and is merely accessed by the [[user]] is not, on that basis alone, a [[product with digital elements]]. Recitals 11 and 12 of the CRA, in fact, draw this distinction, by explaining that [[processing]] or storage at a distance is [[subject]] to the CRA only to the extent that it is necessary for a [[product with digital elements]] to perform its functions (i.e. through the concept of [[remote data processing]] as defined in Article 3(2)), and not themselves as [[product with digital elements|products with digital elements]]. This is typically the case for web applications, including progressive web apps, where they are accessed exclusively through a web browser. The same applies to websites: whilst websites may, to a limited extent, technically run and execute on the [[user]]'s device, it follows from recital 12 of the CRA that websites are not themselves to be considered as [[product with digital elements|products with digital elements]], and fall within the scope of the CRA only where they support the functionality of a [[product with digital elements]], i.e. to the extent that they qualify as [[remote data processing]] (as further explained in Section 8 and notably 8.1.2 Would the absence of such [[data]] [[processing]] prevent the [[product with digital elements]] from performing one of its functions?).

Example 3: a mobile application that a [[user]] downloads from an app store and installs on their smartphone is supplied to the [[user]] and executes on the [[user]]'s device and is therefore a [[product with digital elements]]. Where it is [[placing on the market|placed on the market]] in the course of a commercial activity, it may fall within the scope of the CRA.

Example 4: a desktop application built using web technologies but packaged for local installation is supplied to the [[user]] and executes on the [[user]]'s device, and is therefore a [[product with digital elements]]. Where it is [[placing on the market|placed on the market]] in the course of a commercial activity, it may fall within the scope of the CRA.

Example 5: a web application accessed by the [[user]] exclusively through a web browser is not a [[product with digital elements]]. Unless it supports the functionality of a [[product with digital elements]], it does not fall within the scope of the CRA. By contrast, an application supplied to the [[user]] as a locally installed [[customer|client]] that executes on the [[user]]'s device is a [[product with digital elements]]. Where it is [[placing on the market|placed on the market]] in the course of a commercial activity, it may fall within the scope of the CRA. If that [[customer|client]] relies, in order to perform one or more of its functions, on [[data]] [[processing]] at a distance which meets the definition of [[remote data processing]], that [[data]] [[processing]] at a distance is also part of the [[product with digital elements]].

Example 6: a website that merely presents information to its visitors and does not support the functionality of a [[product with digital elements]] is not itself a [[product with digital elements]]. It therefore does not fall within the scope of the CRA.

### 2.3 Computer code

22. It is also useful to clarify whether source code can constitute a [[software]] [[product with digital elements]]. The CRA defines [[software]] as 'the part of an [[electronic information system]] which consists of computer code' (Article 3(4)). Computer code can take the form of (i) machine code, which is the set of instructions directly executed by a computer's [[processor]], written in binary format; or (ii) source code, i.e. the set of instructions and statements written in a programming language, which must be compiled or interpreted to be executed by a computer. The definition of [[software]] laid down in the CRA covers both.

23. A separate question is whether a given supply of computer code amounts to placing a [[product with digital elements]] on the EU market, which requires a supply in the course of a commercial activity. This may often not be the case for source code. For example, a natural or legal person that shares free and open-source computer code on publicly accessible repositories is generally not considered to be placing that code on the EU market for the purposes of the CRA (as discussed in more detail in Section 3 [[free and open-source software|Free and open-source software]]). Unfinished code shared during the design and development phase of a [[product with digital elements]] (e.g. for testing or review) is also not considered to be [[placing on the market|placed on the market]] for the purposes of the CRA, as its manufacturing phase is not completed. Similarly, sample or demo code provided as part of tutorials or training materials is also not considered [[placing on the market|placed on the market]] for the purposes of the CRA[^8].

24. On the other hand, where a [[manufacturer]] provides its [[customer|customers]] with computer code as a [[product with digital elements]], that code is considered to be [[placing on the market|placed on the market]], regardless of whether it is machine code or source code[^9].

Example 7: Company A licences source code to company B for a customisable internal platform, and provides that source code in a text file. Even if that source code requires further adaptation and compilation by company B before being used, company A is placing that source code on the market and is therefore [[subject]] to the CRA. Company A is not responsible for the compliance with the CRA of company B's subsequent adaptations and compilation of that code.

### 2.4 Combination of hardware and software forming a product with digital elements

25. Whether [[software]] forms part of a [[product with digital elements]] should be determined not by how or when that [[software]] is delivered to the [[user]], but by whether, in light of the product's [[intended purpose]] and [[reasonably foreseeable use]], the [[software]] is necessary for the [[product with digital elements]] to perform its intended functions. Where a [[hardware]] [[product with digital elements]] is designed to work together with a specific [[software]] provided by the same [[manufacturer]] in order to perform its functions, the [[hardware]] and that [[software]] together constitute the [[product with digital elements]]. [[software|Software]] that is necessary to operate, configure, control or use a [[product with digital elements]] in accordance with its [[intended purpose]] is therefore part of the [[product with digital elements]], even if it is obtained through a separate channel (e.g. an app store, a download link or another digital channel after the [[hardware]] [[product with digital elements]] has been [[placing on the market|placed on the market]]). Its [[placing on the market]] thus occurs at the same point in time as units of the [[hardware]] [[product with digital elements|products with digital elements]] are [[placing on the market|placed on the market]].

Example 8: A network printer is [[placing on the market|placed on the market]] as a [[hardware]] [[product with digital elements]], while the [[software]] drivers required to send print jobs, configure the device and manage its operation are made available for download from the [[manufacturer]]'s website. Although the printer and the drivers are supplied through different channels, they together constitute a single [[product with digital elements]], because the printer cannot fulfil its [[intended purpose]] without the drivers.

Example 9: A fitness wearable is [[placing on the market|placed on the market]] to measure a [[user]]'s heart rate and activity, while a smartphone application provided by the [[manufacturer]] is required to display the measurements, show history and allow configuration of the device. Although the application is downloaded separately through an app store, the wearable and the application together constitute a single [[product with digital elements]], because they are designed and intended to operate together to deliver the functionality of the [[product with digital elements]].

### 2.5 Data connection

26. Article 2(1) states that the CRA 'applies to [[product with digital elements|products with digital elements]] [[making available on the market|made available on the market]], the [[intended purpose]] or [[reasonably foreseeable use]] of which includes a direct or indirect logical or physical [[data]] connection to a device or network'. The scope of the CRA is therefore anchored not in the mere presence of electronics, but in the capacity of a [[product with digital elements]] to exchange digital information.

27. While the terms '[[logical connection]]' and '[[physical connection]]' are defined in Article 3, the CRA does not define '[[data]] connection' or 'digital [[data]]'. It is therefore useful to set out an interpretation of what a [[data]] connection is, in order to clarify the boundary of the CRA's scope. This boundary is particularly important to distinguish [[product with digital elements|products with digital elements]] that merely use electrical signals from those that participate in digital communication and are therefore exposed to [[cybersecurity]] [[risk|risks]].

28. At its most basic level, a [[data]] connection involves transmitting information in binary form, i.e. as a sequence of 0s and 1s. Simply [[switching]] an output on and off (i.e. 0/1) does not by itself constitute a [[data]] connection if those states are not intended to represent [[data]] or are not read by a digital input. For a [[data]] connection to exist, the binary states must be deliberately encoded as information by a source and must be capable of being decoded as information at the [[intended purpose|destination]]. In other words, there must be a sender that deliberately generates digital symbols according to a defined scheme, and a receiver capable of interpreting those symbols as [[data]]. Where electrical or electronic signals are used solely to trigger or power a function, without conveying digitally encoded information, no [[data]] connection exists for the purposes of the CRA and therefore the [[product with digital elements]] does not fall within the scope of Article 2(1).

### 2.6 Complex systems

29. [[product with digital elements|Products with digital elements]] within the scope of the CRA may consist not only of single devices or [[software component|software components]], but also of complex systems, including systems composed of multiple [[hardware]] and [[software]] elements that operate together to perform a certain function. Where such a system is [[placing on the market|placed on the market]] as a single [[product with digital elements]], it constitutes a [[product with digital elements]] within the meaning of the CRA.

30. Such complex systems are often characterised by long design and development cycles, with contracts that may have been signed before the CRA applies, extended operational lifetimes and a high degree of technical and organisational complexity. Such systems, to be [[placing on the market|placed on the market]] after the CRA enters into application, may rely on [[component|components]] [[placing on the market|placed on the market]] before the CRA entered into application, on established architectures or on widely used [[interoperability]] standards, including standards referred to in other EU legislation or sector-specific frameworks. As a result, certain technical characteristics of those systems may be difficult or disproportionate to modify without affecting their [[intended purpose]], safety, reliability or [[interoperability]] with existing infrastructure.

31. These characteristics do not in themselves exclude complex systems from the CRA's scope. Rather, they illustrate the application of the CRA's [[risk]]-based approach, which allows compliance to be demonstrated in different ways depending on the characteristics and constraints of the [[product with digital elements]], in accordance with Article 13(3) of the CRA. Those characteristics form part of its [[intended purpose]] and operating context and are therefore relevant when assessing compliance with the essential [[cybersecurity]] requirements (the 'essential requirements'). In particular, recital 55 explicitly recognises that certain essential requirements may not be fully compatible with the nature of a [[product with digital elements]]. For example, this may be the case where compliance would undermine mandatory [[interoperability]] requirements or the system's proper functioning.

32. Accordingly, [[manufacturer|manufacturers]] are required to address [[cybersecurity]] [[risk|risks]] on the basis of the [[cybersecurity]] [[risk]] assessment referred to in Article 13(2). As also explained in recital 55, in some cases, specific essential requirements are not applicable or cannot be fulfilled via the implementation of state-of-the-art security measures due to, for example, the system's [[intended purpose]], which requires the [[product with digital elements]] to interact with existing dependencies or to follow certain [[interoperability]] requirements. In such cases, [[manufacturer|manufacturers]] should identify and document those specific constraints, assess the associated [[risk|risks]], and implement appropriate alternative or compensatory [[risk]]-mitigation measures, so as to not undermine the security of the [[product with digital elements]]. For these purposes, both the technical documentation referred to in Article 31 and the information and instructions to the [[user]] referred to in Annex II play a key role in transparently describing the identified constraints, the associated [[cybersecurity]] [[risk|risks]] and the [[risk]]-mitigation measures implemented. In accordance with the obligation to keep the [[risk]] assessment updated during the [[support period]], [[manufacturer|manufacturers]] should also periodically reassess whether such constraints continue to exist. Where such constraints can be lifted or reduced over time, [[manufacturer|manufacturers]] should update the [[product with digital elements]] accordingly so that it can move towards an appropriate level of [[cybersecurity]][^10].

Example 10: A [[manufacturer]] [[placing on the market|places on the market]] a [[product with digital elements]] that communicates with external systems using a network protocol. As part of the application of the essential requirements, the [[manufacturer]] determines, on the basis of the [[cybersecurity]] [[risk]] assessment, that the use of a secure communication protocol is necessary to ensure the confidentiality and integrity of [[data]] exchanged by the [[product with digital elements]]. However, its [[intended purpose]] includes [[interoperability]] with existing systems that only support an older or less secure protocol. In such cases, the [[manufacturer]] may implement that protocol where this is necessary to achieve [[interoperability]], provided that the associated [[cybersecurity]] [[risk|risks]] are identified and mitigated through other means. Where it is technically feasible for the [[product with digital elements]] to support both the secure protocol and the less secure protocol, the [[manufacturer]] is expected to implement the secure protocol and to enable its use by default. The less secure protocol would be allowed only where required for [[interoperability]].

Example 11: A [[manufacturer]] of an industrial automation system purchases some microcontrollers before the CRA enters into application. The [[manufacturer]] undertakes the [[cybersecurity]] [[risk]] assessment for its industrial automation system to be [[placing on the market|placed on the market]] after the CRA enters into application. On the basis of that [[cybersecurity]] [[risk]] assessment, the [[manufacturer]] does not identify specific [[cybersecurity]] [[risk|risks]] associated with using one of those microcontrollers. The [[manufacturer]] integrates it into its industrial automation system and ensures that the [[product with digital elements]] as a whole (the industrial automation system) meets the essential requirements.

### 2.7 Products with digital elements designed before the CRA entered into application

33. In some cases, a [[manufacturer]] will [[placing on the market|place on the market]], after the CRA enters into application on 11 December 2027, units of a [[product with digital elements]] manufactured in accordance with a type or model designed and developed before the date of application of the CRA. In such cases, compliance with this Regulation does not necessarily require that those units of the [[product with digital elements]] be redesigned. The [[manufacturer]] is required to carry out a [[cybersecurity]] [[risk]] assessment in accordance with Article 13(2) of the CRA in order to determine, on the basis of the [[intended purpose]] and [[reasonably foreseeable use]] of the [[product with digital elements]], which of the essential requirements set out in Part I of Annex I are applicable to that [[product with digital elements]], and how those requirements are implemented.

34. Where the outcome of that [[risk]] assessment demonstrates that the [[product with digital elements]] already incorporates appropriate and effective security measures addressing the relevant [[risk|risks]], the [[manufacturer]] may rely on those existing measures to demonstrate compliance with the CRA. The CRA does not in itself impose an obligation to introduce new security features or to redesign the [[product with digital elements]] where this is not necessary to address the identified [[risk|risks]].

35. Nevertheless, the [[manufacturer]] remains [[subject]] to the obligations laid down in the CRA. These include making sure, before the [[product with digital elements]] is [[placing on the market|placed on the market]], that the applicable [[conformity assessment]] procedure has been carried out, the EU declaration of conformity has been drawn up and the [[CE marking]] affixed. Compliance with those requirements is independent of whether the design of the [[product with digital elements]] required modification as a result of the [[risk]] assessment. For [[product with digital elements|products with digital elements]] designed before the date of application of the CRA, but [[placing on the market|placed on the market]] after that date, when it is not possible for the [[manufacturer]] to demonstrate how the [[risk]] assessment has been taken into account during the design and development phase of the [[product with digital elements]], the obligation of Article 13(2) should be understood as requiring [[manufacturer|manufacturers]] to perform a [[cybersecurity]] [[risk]] assessment and demonstrate on that basis that the [[product with digital elements]] incorporates adequate security measures with a view to minimising [[cybersecurity]] [[risk|risks]], preventing incidents and minimising their impact, including in relation to the health and safety of [[user|users]].

36. Accordingly, [[product with digital elements|products with digital elements]] designed before the CRA entered into application might be [[placing on the market|placed on the market]] under the CRA without redesign, provided that the [[manufacturer]] can demonstrate, through the [[cybersecurity]] [[risk]] assessment and the technical documentation, that the [[product with digital elements]] achieves an appropriate level of [[cybersecurity]] in light of its [[intended purpose]] and [[reasonably foreseeable use]] and complies with the [[cybersecurity]] essential requirements.

37. Furthermore, it is helpful to clarify the application of [[conformity assessment]] obligations for [[manufacturer|manufacturers]] of [[product with digital elements|products with digital elements]] that are [[placing on the market|placed on the market]] after the CRA enters into application, but manufactured in accordance with a type or model designed and developed before that date. In accordance with Article 13(12), the [[manufacturer]] is required to demonstrate via the relevant [[conformity assessment]] procedure that its [[product with digital elements]] is in conformity with the applicable essential requirements and to include evidence to that effect in the product's technical documentation (point 6 of Annex VII).

38. However, the application of such requirements needs to be interpreted in light of the [[cybersecurity]] [[risk]] assessment and the [[cybersecurity]] [[risk]] profile of the [[product with digital elements]]. Particularly in the case of [[product with digital elements|products with digital elements]] designed before the date of application of the CRA (but [[placing on the market|placed on the market]] after that date) and [[subject]] to the [[conformity assessment]] procedures of Article 32(1), where the [[risk]] assessment demonstrates that the [[product with digital elements]] already incorporates appropriate and effective security measures addressing that product's [[risk|risks]], the obligation to provide evidence as part of the [[conformity assessment]] procedure should not be understood as requiring the [[manufacturer]] to provide test results covering the original design and development phases of such [[product with digital elements|products with digital elements]]. This would not be necessary as it would not be contributing to increasing the security of the [[product with digital elements]] itself. Where tests may nonetheless be necessary, [[manufacturer|manufacturers]] are not expected to provide evidence of tests carried out on all product variants, but can group such tests across families of [[product with digital elements|products with digital elements]], as further discussed in Section 7.4 Reuse of [[risk]] assessments and conformity documentation for families of [[product with digital elements|products with digital elements]].

39. Nonetheless, the [[manufacturer]] should provide evidence of how it complies with the vulnerability handling processes laid down in Part II of Annex I, it should keep its [[risk]] assessment updated in line with Article 13(3), as well as fulfil all other obligations laid down in the CRA, including by providing [[user|users]] with information and instructions in accordance with Article 13(18).

Example 12: A [[manufacturer]] [[placing on the market|places on the market]] a microcontroller that was designed and developed before the date of application of the CRA. The microcontroller is intended to be integrated into a range of electronic [[product with digital elements|products with digital elements]], including [[product with digital elements|products with digital elements]] with connectivity functionalities. Before placing new units of the microcontroller on the market after the CRA applies, the [[manufacturer]] carries out a [[cybersecurity]] [[risk]] assessment in accordance with Article 13(2). On the basis of the [[intended purpose]] of the microcontroller and its [[reasonably foreseeable use]], the [[manufacturer]] identifies relevant [[cybersecurity]] [[risk|risks]], such as unauthorised access, manipulation of [[software]] or [[data]], and misuse of available interfaces. The outcome of the [[risk]] assessment shows that the microcontroller, as originally designed, already incorporates appropriate and effective security measures addressing the identified [[risk|risks]]. The [[manufacturer]] therefore concludes that the [[product with digital elements]] meets the relevant essential requirements set out in Part I of Annex I and that no redesign or introduction of additional security functionalities is necessary. Where it is not possible to demonstrate how a [[cybersecurity]] [[risk]] assessment was taken into account during the original design and development phase, the [[manufacturer]] documents a current [[cybersecurity]] [[risk]] assessment and explains how the existing design and measures mitigate the identified [[risk|risks]]. The [[manufacturer]] is not required to recreate historical design or test documentation, as this would not contribute to enhancing the [[cybersecurity]] of the [[product with digital elements]]. Where several variants of the microcontroller are based on the same design and share the same [[cybersecurity]] [[risk]] profile, the [[manufacturer]] may also rely on [[representative]] evidence covering the relevant product family. The [[manufacturer]] also ensures compliance with the vulnerability handling requirements laid down in Part II of Annex I, including by maintaining processes to address and remediate vulnerabilities and by keeping the [[cybersecurity]] [[risk]] assessment under review in accordance with Article 13(3). In these circumstances, the microcontroller designed before the date of application of the CRA may be [[placing on the market|placed on the market]] without redesign, provided that the [[manufacturer]] can demonstrate, through the [[cybersecurity]] [[risk]] assessment and the technical documentation, that it achieves an appropriate level of [[cybersecurity]] in light of its [[intended purpose]] and [[reasonably foreseeable use]] and complies with the applicable essential requirements.

## 3 Free and open-source software

40. As [[recall of an AI system|recalled]] in Section 2.1 [[placing on the market|Placing on the market]], the CRA applies to [[product with digital elements|products with digital elements]] that are made available on the EU market in the course of a commercial activity for the first time (i.e. '[[placing on the market|placed on the market]]'), as well as to any subsequent instance that constitutes making that same [[product with digital elements]] available on the market. The Blue Guide (Section 2.2) clarifies that 'commercial activity' is to be understood as providing goods, in return for payment or free of charge, in a business-related context and can only be appreciated on a case- by-case basis, taking into account the regularity of the supplies, the characteristics of the product, the intentions of the supplier, etc.

41. Supply in the course of a commercial activity is characterised by a range of circumstances, amply documented in the Blue Guide and [[recall of an AI system|recalled]] in recital 15 of the CRA. These can include directly charging a price, as well as 'charging a price for technical support services where this does not serve only the recuperation of actual costs, by an intention to monetise, for instance by providing a [[software]] platform through which the [[manufacturer]] monetises other services, by requiring as a condition for use the [[processing]] of [[personal data]] for reasons other than exclusively for improving the security, compatibility or [[interoperability]] of the [[software]], or by accepting donations exceeding the costs associated with the design, development and provision of a [[product with digital elements]]' (recital 15)[^11].

42. The CRA, however, recognises the specificities in the different ways of developing and publishing '[[free and open-source software]]' (FOSS) and offers some guidance to help identify whether a FOSS is a [[product with digital elements]] [[placing on the market|placed on the market]] (i.e. in the course of a commercial activity) within the meaning of the CRA. As explained in recital 18, 'the mere circumstances under which the [[product with digital elements]] has been developed, or how the development has been financed, should [...] not be taken into account when determining the commercial or non-commercial nature of that activity'. More specifically, 'to ensure that there is a clear distinction between the development and supply phases, the provision of [[product with digital elements|products with digital elements]] qualifying as [[free and open-source software]] that are not monetised by their [[manufacturer|manufacturers]] should not be considered to be a commercial activity'.

43. It is therefore useful to (i) clarify what FOSS is; (ii) when it is deemed to fall under the responsibility of a natural or legal person; and (iii) to provide examples to help stakeholders understand when the distribution of FOSS constitutes a placement on the market. Where FOSS is not [[placing on the market|placed on the market]], it falls outside the scope of the CRA, unless the entity publishing it is a legal person that meets the definition of 'open- source [[software]] steward' (henceforth, 'steward') under Article 3(14). In that case, it is [[subject]] only to the obligations laid down in Article 24.

44. Article 3(48) defines FOSS as '[[software]] the source code of which is openly shared and which is made available under a free and open-source licence which provides for all rights to make it freely accessible, usable, modifiable and redistributable'. While this guidance does not identify specific free and open-source licences that are compatible with the definition laid down in Article 3(48), it follows from the wording of that provision that only [[software]] that cumulatively fulfils two conditions qualifies as FOSS for the purposes of the CRA: (i) the [[software]] must be made available under a free and open-source licence granting the full set of rights referred to in Article 3(48); and (ii) its source code must be openly shared.

45. The requirement that the licence provide for the [[software]] to be 'freely accessible, usable, modifiable and redistributable' reflects the traditional understanding of FOSS, namely that [[user|users]] must be able to access the source code, use it without undue restriction, modify it and redistribute original or modified versions. Access to the source code is therefore a necessary precondition for the exercise of the other rights: without access to the source code, it is not practically possible to modify or meaningfully reuse the [[software]].

46. However, Article 3(48) goes beyond referring only to the licence terms, as it expressly requires that the source code 'is openly shared'. The notion of 'openly shared' indicates that the source code must be made publicly available (either 'upstream' or 'downstream'), and not merely provided on a restricted or conditional basis. Accordingly, [[software]] distributed under a free and open-source licence but whose source code is only shared (or allowed to be shared) with paying [[customer|customers]] or a limited group of [[user|users]] is not to be considered FOSS within the meaning of Article 3(48). For the purposes of the CRA, only [[software]] whose source code is publicly available and licensed under a free and open-source licence granting the full set of rights referred to in Article 3(48) should therefore be considered to qualify as FOSS.

### 3.1 Determining if free and open-source software is under one's responsibility

47. The CRA places key responsibilities on economic [[operator|operators]] that supply [[product with digital elements|products with digital elements]] in the EU market. It defines the [[manufacturer]] as the natural or legal person that supplies a [[product with digital elements]] under its name or trademark, and that does so in the course of a commercial activity (thereby placing it on the market). Similarly, an [[importer]] is the natural or legal person established in the EU that supplies the [[product with digital elements]] of a person established outside of the EU, and that does so in the course of a commercial activity (thereby placing it on the market). The obligations of stewards apply to the legal person that supplies a FOSS intended for commercial activities[^12], but does not place it on the market within the meaning of the CRA.

48. Therefore, to determine whether a natural or legal person is placing FOSS on the EU market, first it needs to be clarified whether that natural or legal person is actually supplying the FOSS. To correctly establish the applicable obligations under the CRA, it is essential to determine whether the natural or legal person is indeed performing the action of supplying a FOSS. In fact, as [[recall of an AI system|recalled]] in recital 18, the CRA does not apply to natural or legal persons who contribute source code to [[product with digital elements|products with digital elements]] qualifying as FOSS that are not under their responsibility.

49. Given the specificities of the development of FOSS, which often involves multiple contributors, decentralised collaboration models and a separation between contribution and decision-making, it is useful to clarify that FOSS is considered to be 'under the responsibility' of natural or legal persons who publish it and exercise primary control over its development, releases, and distribution decisions (often referred to as 'maintainers'). Persons who contribute source code but do not control releases, roadmaps, or governance decisions are considered 'contributors'; in such cases, the FOSS is not under their responsibility, even though they contributed code to it. The mere existence of technical permissions, such as commit access, is not sufficient to establish that the FOSS is under that person's responsibility; responsibility lies with those who publish and control the FOSS.

Example 13: An individual developer or an employee of a company submits a 'pull' or 'merge' request containing a security patch or a new feature to a FOSS project. The project's maintainers review, accept and merge the code into the main repository, subsequently including it in a new release. In this scenario, the person who submitted the pull request is a 'contributor' and is not [[subject]] to the CRA. Although that person contributed source code, they do not exercise primary control over the development, releases or distribution decisions.

### 3.2 Determining if free and open-source software is placed on the EU market

50. Once it is established that a FOSS is under the responsibility of a natural or legal person, it needs to be established whether that person supplies it in the course of a commercial activity, thereby constituting a placement on the market.

#### 3.2.1 Charging a price

51. Where the natural or legal person that supplies a FOSS charges a price for the [[software]] itself (e.g. by charging a price for the pre-compiled binaries), that person is placing a [[product with digital elements]] on the market. The person that places a FOSS on the market is therefore a [[manufacturer]] under the CRA.

52. Often, [[manufacturer|manufacturers]] of FOSS supply versions for free of that [[software]] (often called 'community' versions), whose codebase is (almost) identical to the paid version. Those [[product with digital elements|products with digital elements]], however, are different products: the paid version is monetised in some way (e.g. either by charging a price or via other means as discussed in this section) and therefore considered to be [[placing on the market|placed on the market]], triggering the [[manufacturer]]'s obligations. The version provided for free (or community version) is not monetised and therefore is not considered to be [[placing on the market|placed on the market]] for the purposes of the CRA. This is also the case where the paid version is an 'enhanced' commercial version, which extends the codebase of the version provided for free, or incorporates that version into a broader [[product with digital elements]] (e.g. as in the case of the 'open-core' model).

53. If the person supplying the community version is a legal person, that legal person is also [[subject]] to the obligations on stewards for the version it supplies for free (the community version). If the entity is a natural person, the version provided for free (the community version) is not within the scope of the CRA.

#### 3.2.2 Monetisation of other services or requiring the processing of personal data

54. A natural or legal person publishing a FOSS may also be placing it on the market (i.e. supplying it in the course of a commercial activity) where it provides the [[software]] through which it monetises other [[product with digital elements|products with digital elements]] or services, or where it requires as a condition for use the [[processing]] of [[personal data]] for reasons other than exclusively for improving the security, compatibility or [[interoperability]] of the [[software]].

Example 14: A natural or legal person publishes a free and open-source marketplace application. The application is available free of charge and enables [[user|users]] to purchase goods or services through it. The app allows the person that published it to monetise other [[product with digital elements|products with digital elements]] and services offered through it (e.g. through [[advertisement|advertisements]], commission fees or subscription fees). Therefore, the application is considered [[placing on the market|placed on the market]] in the course of a commercial activity.

Example 15: A natural or legal person publishes a free and open-source VPN. The application is available free of charge, but it enables [[user|users]] to pay to access additional servers or dedicated IP addresses. That application allows that person to monetise other services offered through it, therefore it is considered [[placing on the market|placed on the market]] in the course of a commercial activity.

Example 16: A natural or legal person publishes a free and open-source fitness tracking application. The application is available free of charge, but its use is conditional upon the [[processing]] of [[user|users]]' [[personal data]] for purposes such as targeted advertising or analytics unrelated to the security, compatibility or [[interoperability]] of the [[software]]. By requiring such [[data]] [[processing]] as a condition for use, the application is therefore considered [[placing on the market|placed on the market]] in the course of a commercial activity.

#### 3.2.3 Support services

55. The mere fact that a natural or legal person publishing a FOSS also offers paid support services related to it does not, as such, mean that the [[product with digital elements]] is supplied in the course of a commercial activity. Support services may include activities such as consultancy, training or professional services related to the use, documentation, configuration and deployment of the [[software]] by a [[customer]].

56. The decisive factor is whether access to the FOSS itself (i.e. the provision of the [[product with digital elements]]), including its maintenance, is conditioned on remuneration, rather than the mere offering of professional services around a freely available [[product with digital elements]], as indicated in recital 18 of the CRA ('the provision of [[product with digital elements|products with digital elements]] qualifying as [[free and open-source software]] that are not monetised by their [[manufacturer|manufacturers]] should not be considered to be a commercial activity'). Where the FOSS can be downloaded and installed freely, and [[user|users]] can optionally choose to purchase professional services separately, that FOSS is not considered to be [[placing on the market|placed on the market]].

57. By contrast, in some cases access to a specific version of the [[product with digital elements]] including certain benefits such as technical assistance or [[performance of an AI system|performance]] optimisation, is conditioned on remuneration. In such cases, that provision constitutes a monetised provision of a [[product with digital elements]] supplied in the course of a commercial activity and is therefore considered [[placing on the market|placed on the market]]. This includes cases where a paid edition or [[enterprise]] version is made available under a commercial agreement, irrespective of whether functionally equivalent [[software]] is also available free of charge under a free and open-source licence.

Example 17: A natural or legal person publishes a free and open-source operating system, offering a paid version of that operating system which includes support services, such as technical assistance or [[performance of an AI system|performance]] optimisation. The paid version of the operating system is considered [[placing on the market|placed on the market]] in the course of a commercial activity.

Example 18: A natural or legal person publishes a free and open-source command line tool. The tool is freely accessible and anyone can download and install it. That natural or legal person separately offers professional services, such as optional consultancy services to train [[user|users]] and support them in installing and using the tool. That FOSS is not considered [[placing on the market|placed on the market]] within the meaning of the CRA.

58. Particularly in the case of natural persons publishing FOSS, offering technical assistance directly bundled with access to the [[product with digital elements]] would still not qualify as a commercial activity if, as indicated by recital 15 of the CRA, the price charged serves only the recuperation of actual costs. Such actual costs include a variety of costs related to that [[software]]'s design, development and maintenance, including the person's reasonable living expenses. Therefore, a natural person publishing a FOSS and offering technical assistance to cover their costs and obtain fair remuneration is not to be considered, on that basis alone, as placing that [[software]] on the EU market.

59. A natural or legal person offering technical assistance related to a FOSS not under its responsibility is not considered to be placing that [[software]] on the market, unless that person substantially modifies the FOSS, in accordance with Article 22, as part of their delivery of such assistance.

Example 19: A service [[provider]] does not publish a FOSS, but helps a [[customer]] install it on the [[customer]]'s on-premises server. It does so without performing a [[substantial modification]] of that FOSS. The service [[provider]] is therefore not considered to be placing the FOSS on the market.

#### 3.2.4 Donations

60. Natural or legal persons publishing FOSS projects routinely include ways for [[user|users]] of that [[software]] to voluntarily donate money to thank the project's publisher(s) and also to ensure that the project remains actively maintained.

61. As indicated in recital 15 of the CRA 'accepting donations without the intention of making a profit should not be considered to be a commercial activity'. The mere fact of including a link to a donation platform or similar tools to collect donations should not be viewed as an intention to make a profit, even where the amount collected via donations exceeds the mere costs associated with the design, development and provision of a [[product with digital elements]]. This includes reasonable compensation for the contributors hired by a legal person, and/or a natural person's reasonable living expenses. Donations, by their very nature, fluctuate over time, and therefore a degree of flexibility is to be exercised when assessing whether a FOSS monetised exclusively through donations is considered to be [[placing on the market|placed on the market]]. A FOSS supported only through donations is therefore unlikely to be considered to be [[placing on the market|placed on the market]] within the meaning of the CRA.

Example 20: A natural or legal person publishes a FOSS tool in a public online repository, allowing anyone to download, use, modify and redistribute it under a free and open-source licence. The publisher invites [[user|users]] to make voluntary donations via a donation platform to support the project's continued development and maintenance. Access to the [[software]], its source code and its updates is not conditional on making a donation. That FOSS is not considered to be supplied in the course of a commercial activity and is not considered to be [[placing on the market|placed on the market]] within the meaning of the CRA.

62. Nonetheless, there are instances where a FOSS supported through donations may be considered to be [[placing on the market|placed on the market]]. This is the case where, based on an overall assessment of the circumstances, the donations are de facto equivalent to charging a price to access the [[product with digital elements]] or certain of its functionalities. This may be the case, in particular, where access to the FOSS, to essential functionalities or to updates is conditioned in practice on making a donation, or where donations are associated with contractual benefits or exclusive advantages that go beyond community perks.

Example 21: A natural or legal person publishes a [[software]] [[product with digital elements]] under a free and open-source licence, but provides downloadable releases and security updates only to [[user|users]] who make a donation. [[user|Users]] who do not make a donation do not have access to the [[software]]'s current version. In this case, the donations are de facto a condition for access to the [[product with digital elements]] and therefore amount to charging a price. That FOSS is therefore considered to be [[placing on the market|placed on the market]] within the meaning of the CRA.

Example 22: A natural or legal person makes the source code of a FOSS publicly available, but provides pre-compiled binaries, regular updates and guaranteed security fixes only to donors. In this case, the donations are linked to access to essential aspects of the [[product with digital elements]] and constitute remuneration for that product's supply. That FOSS is therefore considered to be [[placing on the market|placed on the market]] in the course of a commercial activity.

#### 3.2.5 Financing of free and open-source software

63. The mere fact that a [[third party]] has paid for, sponsored or otherwise financed the development of a FOSS does not in itself determine whether that FOSS is [[placing on the market|placed on the market]]. It is common practice in the FOSS ecosystem for individual developers, foundations or communities to receive funding from companies, public bodies or other sponsors in order to work on specific features, fix bugs or maintain critical [[component|components]]. This funding may take many forms, including grants, bug bounties, sponsorships, service contracts or paid development work.

64. As already [[recall of an AI system|recalled]], recital 18 of the CRA, clarifies that the mere circumstances under which the [[product with digital elements]] has been developed, or how the development has been financed, should not be taken into account when determining the commercial nature of that activity.

65. Therefore, where the FOSS is openly shared and made freely available for all to access, use, modify and redistribute, the fact that a commercial entity may have paid for that project should not contribute to determining whether the [[software]] is [[placing on the market|placed on the market]]. In fact, if that FOSS is not otherwise monetised, it is not to be considered as [[placing on the market|placed on the market]]. Where the company that funded the FOSS's development (as well as any other company) integrates it into its [[product with digital elements]], that company is to exercise due diligence in accordance with Article 13(5) of the CRA.

Example 23: An individual developer publishes a FOSS project and actively maintains it. [[manufacturer|Manufacturer]] A requests that the individual developer add a specific feature for that FOSS, and funds that development. The developer adds the feature to the FOSS codebase, openly sharing it and making it freely available for all to access, use, modify and redistribute. The individual developer is not considered to have placed that FOSS on the market. If the [[manufacturer]] integrates the FOSS into its [[product with digital elements]], it needs to exercise due diligence in accordance with Article 13(5).

#### 3.2.6 Not-for-profit entities set up to achieve not-for-profit objectives

66. Where a legal person publishing a FOSS is a not-for-profit organisation 'set up in such a way that ensures that all earnings after costs are used to achieve not-for-profit objectives' (recital 18 of the CRA), the FOSS it publishes is not considered to be [[placing on the market|placed on the market]]. Where that legal person meets the definition of 'steward', it is [[subject]] to the corresponding obligations (Article 24 of the CRA).

Example 24: A legal person publishes a free and open-source browser that is directly monetised via search engine partnerships, but all its earnings after costs are used for not-for-profit objectives. The browser is not considered to be [[placing on the market|placed on the market]] within the meaning of the CRA. The legal person publishing it is [[subject]] to the obligations applicable to stewards.

#### 3.2.7 Integration by other manufacturers

67. In some cases, a FOSS is published by a clearly identifiable natural or legal person, but that FOSS is 'intended for integration by other [[manufacturer|manufacturers]] into their own [[product with digital elements|products with digital elements]]'. In such cases, that FOSS is not considered to be placed on the EU market, unless it is also monetised by the person that publishes it (i.e. the original [[manufacturer]]), in line with previous sections of this guidance.

68. Where that FOSS is not [[placing on the market|placed on the market]], the legal person publishing it would be [[subject]] to the obligations of stewards, if it provides support on a sustained basis, in line with the definition of 'steward'.

Example 25: A legal person publishes a FOSS library for building [[user]] interfaces. It does not monetise the supply of that library, but integrates it into one of its [[product with digital elements|products with digital elements]] (which is in turn [[placing on the market|placed on the market]]). The library is not considered [[placing on the market|placed on the market]] within the meaning of the CRA, but it is intended for integration into [[product with digital elements|products with digital elements]]. The legal person that publishes it is its steward.

Example 26: A legal person places an operating system on the market, and also publishes FOSS libraries to serve as reference implementations for [[user|users]] of that operating system. The legal person does not monetise the FOSS libraries, which are intended for integration into other [[product with digital elements|products with digital elements]]. The legal person that publishes them is a steward to those FOSS libraries.

### 3.3 Open-source software stewards

69. The CRA introduces the novel legal category of '[[open-source software steward]]' in light of 'the importance for [[cybersecurity]] of many [[product with digital elements|products with digital elements]] qualifying as [[free and open-source software]] that are published, but not [[making available on the market|made available on the market]] within the meaning of the [CRA]' (recital 19 of the CRA).

70. In some cases, a FOSS is published but not [[making available on the market|made available on the market]] within the meaning of the CRA by a legal person who 'has the purpose or objective of systematically providing support on a sustained basis for the development of [FOSS] [...] intended for commercial activities, and that ensures the viability of those products' (Article 3(14) of the CRA). In such cases, that legal person is [[subject]] to the obligations of stewards.

71. A steward is defined as 'a legal person, other than a [[manufacturer]]' because a [[manufacturer]], by definition, is the natural or legal person who places [[product with digital elements|products with digital elements]] on the market ('markets them') under its own name or trademark. A legal person can be a steward only to [[product with digital elements|products with digital elements]] qualifying as FOSS that are published, but not [[making available on the market|made available on the market]] within the meaning of the CRA. The concept of steward, therefore, applies to specific instances of FOSS that 'are ultimately intended for commercial activities, such as for integration into commercial services or into monetised [[product with digital elements|products with digital elements]]' (recital 19 of the CRA[^13]) but not [[making available on the market|made available on the market]] within the meaning of the CRA, and for which the legal person publishing that FOSS ensures systematic support.

72. Being a steward for one specific FOSS does not mean that that legal person is necessarily also a steward for other FOSS that it publishes. Similarly, being a [[manufacturer]] for one specific FOSS does not mean that the legal person may not be a steward for other FOSS. This includes providing 'community' versions of the same FOSS, as described in Section 3.2.1 Charging a price.

73. A legal person may therefore simultaneously be a steward for one specific FOSS (where the steward systematically provides support on a sustained basis and ensures the [[software]]'s viability) and a [[manufacturer]] for another specific FOSS (where it places it on the market). In other words, the same legal entity can be required to fulfil different roles for different FOSS projects.

74. For each specific FOSS that it publishes, the legal person will need to ascertain whether that FOSS is considered to be [[placing on the market|placed on the market]] within the meaning of the CRA. If so, that makes the legal entity the [[software]]'s [[manufacturer]]. If the FOSS is not considered to be [[placing on the market|placed on the market]], the legal person may be the steward to it, if the [[software]] is intended for commercial activities and if the legal person is sustaining it in line with the definition of steward[^14].

#### 3.3.1 Sustained support and ensuring viability of FOSS

75. Recital 19 explains that the provision of sustained support to the development of a [[product with digital elements]] may include (but is not limited to): (i) the [[hosting]] and managing of [[software]] development collaboration platforms; (ii) [[hosting]] source code or [[software]]; (iii) governing or managing [[product with digital elements|products with digital elements]] qualifying as FOSS; and (iv) steering the development of such [[product with digital elements|products with digital elements]].

76. This may be the case, for example, for a legal entity that develops FOSS for integration into its own [[product with digital elements|products with digital elements]] and then publishes it without placing it on the market. This is also discussed in Section 3.2.7 Integration by other [[manufacturer|manufacturers]]. In this case, the legal entity is not a [[manufacturer]] of the [[software]], but may be a steward to it. Additionally, as also explained in previous sections, a legal entity that publishes a free (or community) version and a monetised version of the same FOSS, is deemed a steward to the free (or community) version, and a [[manufacturer]] to the monetised version.

77. Similarly, a legal entity that monetises a FOSS but is a not-for-profit entity whose earnings after costs are used to achieve not-for-profit objectives (and therefore its FOSS is not [[placing on the market|placed on the market]] within the meaning of the CRA, as discussed in Section 3.2.6 Not-for-profit entities) is a steward to the FOSS it publishes.

78. Furthermore, certain foundations offer collaboration platforms with various forms of governance that enable [[manufacturer|manufacturers]] to contribute regularly to the development of FOSS and/or that are regularly financed by [[manufacturer|manufacturers]]. Such foundations are to be considered stewards in relation to specific FOSS which are intended for commercial activities and for which the foundation offers sustained support. However, as explained in Section 3.3 [[open-source software steward|Open-source software stewards]], such a foundation may not be [[subject]] to any obligations under the CRA for other specific FOSS that it hosts, in cases where it does not provide systematic support for a specific FOSS, it does not ensure its viability, and/or that specific [[software]] is not intended for commercial activities.

79. The type of 'sustained support' that foundations and similar organisations provide to specific FOSS projects can vary greatly. For example, certain legal entities only provide non-technical support, such as managing the branding of projects, laying down governance rules, organising community events or collecting donations. Other entities also provide the underlying IT infrastructure necessary to run the project, such as [[hosting]] source code repositories, providing version control systems, or generating signing keys. Others go further in the type of support they provide by actively contributing engineering resources to the project, for example by employing developers, coordinating development work, reviewing or merging code, managing releases, or handling vulnerability reports and security patches. While all legal entities that qualify as stewards under the CRA are required to comply with the obligations in Article 24(1) and (2), how far the obligations laid down in Article 14(1), (3) and (8) apply to those legal entities varies depending on the type of support they provide, in accordance with Article 24(3).

80. For example, a steward that only provides non-technical support is, by definition, not involved in development of the [[product with digital elements]], and is therefore not required to report [[actively exploited vulnerability|actively exploited vulnerabilities]]. That steward also does not provide any [[network and information system|network and information systems]] for the development of such [[product with digital elements|products with digital elements]], and therefore is not required to report severe incidents to ENISA and the CSIRTs or to impacted [[user|users]]. Nonetheless, where the steward becomes aware of an [[actively exploited vulnerability]] (e.g. via a report from external sources, such as security researchers), it should share the information with the maintainers of the [[product with digital elements]], in accordance with its [[cybersecurity]] policy. The maintainers of the [[product with digital elements|products with digital elements]] and/or the stewards should also consider reporting the vulnerability on a voluntary basis, in accordance with Article 15.

81. On the other hand, where a steward provides the underlying IT infrastructure for certain [[product with digital elements|products with digital elements]], it is required to notify ENISA and the CSIRTs, in accordance with Article 14(3) of any severe incidents related to that infrastructure that have an impact on the security of [[product with digital elements|products with digital elements]]. It is also required, where appropriate, to inform all [[user|users]] (e.g. via a general announcement). As indicated in the previous point, while the steward is not required to report [[actively exploited vulnerability|actively exploited vulnerabilities]] it becomes aware of, it should foster the correct handling of vulnerabilities and should consider voluntary reporting in accordance with Article 15.

82. Finally, where a steward also provides engineering resources to specific [[product with digital elements|products with digital elements]], it is required to: (i) notify, in accordance with Article 14(1), of [[actively exploited vulnerability|actively exploited vulnerabilities]] that it becomes aware of; and (ii) where appropriate, to inform all [[user|users]]. To the extent that the steward also has a direct relationship with impacted [[user|users]], it is also required to inform them directly, in accordance with Article 14(8).

83. Where an entity ceases to provide systematic support on a sustained basis for a specific FOSS, it may no longer meet the definition of steward and may therefore no longer be [[subject]] to the corresponding obligations. In such cases, that entity is encouraged to communicate clearly the change in its status for that specific FOSS.

84. In certain situations, an entity that was a steward to a specific project may decide to monetise that project directly, thereby placing the [[product with digital elements]] on the market and triggering the [[manufacturer]]'s obligations under the CRA. In such circumstances, that entity qualifies as the [[manufacturer]] of the [[product with digital elements]] from the date on which it places it on the market (but not in respect of earlier versions for which it acted as a steward).

### 3.4 Contributors and downstream uses

85. As already mentioned in Section 3.1 Determining if [[free and open-source software]] is under one's responsibility, the CRA clarifies that it does not apply 'to natural or legal persons who contribute with source code to [[product with digital elements|products with digital elements]] qualifying as [[free and open-source software]] that are not under their responsibility' (recital 18).

86. [[manufacturer|Manufacturers]] of [[product with digital elements|products with digital elements]] that integrate FOSS [[component|components]] into their own [[product with digital elements|products with digital elements]] also do not become responsible for such [[component|components]]' individual compliance with the CRA, even where the [[manufacturer|manufacturers]] contribute source code to their maintenance.

87. Similarly, the mere fact that [[manufacturer|manufacturers]] integrate FOSS [[component|components]] into their own (monetised) [[product with digital elements|products with digital elements]] has no impact on the status of that FOSS [[component]] under the CRA. Maintainers of FOSS [[component|components]] that are not [[placing on the market|placed on the market]] do not bear obligations in relation to other entities that may integrate such [[component|components]] into their [[product with digital elements|products with digital elements]]. Whether the CRA applies to a given FOSS [[component]] depends solely on whether the natural or legal person that publishes it places it on the market.

88. Nonetheless, [[manufacturer|manufacturers]] of [[product with digital elements|products with digital elements]] that integrate FOSS [[component|components]] are required to comply with the CRA for their own [[product with digital elements|products with digital elements]]. They also have a due diligence obligation, in accordance with Article 13(5), towards the FOSS [[component|components]] that they integrate. In addition, they are required to report vulnerabilities in integrated [[component|components]] and share security fixes in accordance with Article 13(6). For more guidance on this topic, see Section 9.2.1 Reporting upstream and sharing security fixes.

### 3.5 Illustrative scenarios

89. The examples listed below are completely hypothetical and only meant to illustrate different cases as explained in the sections above.

Example 27: Individual developer A has developed a FOSS. Developer A publishes that FOSS under its own name or trademark, but does not charge a price for its use. The [[software]] is openly shared and freely available for all to access, use, modify and redistribute. Developer A also includes a link to a platform to collect voluntary donations. Companies B, C and D integrate that FOSS into their own [[product with digital elements|products with digital elements]]. To support ongoing maintenance, companies B, C and D make voluntary donations to developer A. These donations enable developer A to keep the project actively maintained. That FOSS is not [[placing on the market|placed on the market]] within the meaning of the CRA. Developer A has no obligations under the CRA. Companies B, C, and D are to exercise due diligence in accordance with Article 13(5) when integrating that FOSS into their own [[product with digital elements|products with digital elements]].

Example 28: Not-for-profit foundation F publishes a FOSS [[component]] for integration into other commercial [[product with digital elements|products with digital elements]]. Foundation F commits to providing sustained support to that FOSS, to ensure its viability and uptake. Companies A, B and C integrate that FOSS into their own [[product with digital elements|products with digital elements]]. Companies A and B voluntarily contribute some of their developers' time to development and maintenance of FOSS projects within foundation F, including for that FOSS. As foundation F is a not-for-profit entity set up in such a way that its earnings after costs are used to achieve not-for-profit objectives, the FOSS is not considered to be [[placing on the market|placed on the market]] within the meaning of the CRA. Foundation F is the FOSS steward and is [[subject]] to the corresponding obligations laid down in Article 24. Companies A, B and C are to exercise due diligence in accordance with Article 13(5) when integrating that FOSS into their own [[product with digital elements|products with digital elements]].

Example 29: Company A has developed a FOSS [[component]] for integration into its own [[product with digital elements|products with digital elements]]. It also publishes that FOSS separately under its own name or trademark and actively maintains it. However, it does not charge for its use or monetise in other ways. Companies B, C and D integrate that FOSS into their own [[product with digital elements|products with digital elements]], and voluntarily contribute some of their developers' time to its maintenance. That FOSS is not considered to be [[placing on the market|placed on the market]] within the meaning of the CRA. Company A is not its [[manufacturer]], but is its steward. Companies B, C, and D are to exercise due diligence in accordance with Article 13(5) when integrating the FOSS into their own [[product with digital elements|products with digital elements]].

Example 30: Company A publishes a FOSS under its own name or trademark and offers it as a paid version, which includes certain benefits such as technical assistance or [[performance of an AI system|performance]] optimisation. Developers from companies B, C and D contribute to the FOSS's maintenance, but it remains under the control of company A. Company A is considered a [[manufacturer]] to that FOSS[^15]. Companies B, C and D are not [[subject]] to obligations under the CRA for that specific FOSS. If they integrate that FOSS into their own [[product with digital elements|products with digital elements]], they are required to exercise due diligence in accordance with Article 13(5).

Example 31: Company A publishes a FOSS under its own name or trademark and provides ongoing maintenance to ensure its long-term viability, to enable that [[software]] to be integrated into other companies' [[product with digital elements|products with digital elements]]. Company A does not charge for its use, process [[personal data]] it collects through the [[product with digital elements]], or sell support services associated with publishing the FOSS. Company B contributes code and developers' time to the FOSS's maintenance, but does not distribute it commercially. Company B offers technical support services independently from the FOSS's distribution. Company A is deemed to be the steward for that FOSS, whereas company B has no obligations under the CRA for that FOSS.

Example 32: A FOSS [[component]] is published by a not-for-profit entity set up in such a way that ensures that all earnings after costs are used to achieve not-for-profit objectives. The entity provides sustained support to ensure the project's long-term viability. Maintenance is financed through public funding, such as research grants. Additional developments, including new features, are funded through donations and specific projects, carried out in partnership with [[manufacturer|manufacturers]] that integrate that FOSS into their [[product with digital elements|products with digital elements]]. Such features are incorporated into the FOSS's codebase. The not-for-profit entity that publishes the FOSS is deemed the steward for that FOSS [[component]]. A [[manufacturer]] that has contributed to the development of certain features does not become the [[manufacturer]] of that FOSS [[component]]. Where the [[manufacturer]] integrates that FOSS [[component]] into its own [[product with digital elements]], it needs to exercise due diligence in accordance with Article 13(5).

Example 33: A not-for-profit entity set up in such a way that ensures that all earnings after costs are used to achieve not-for-profit objectives publishes a FOSS [[software]] development kit (SDK) and ensures its ongoing maintenance. The SDK is openly shared and is freely available for all to access, use, modify and redistribute. Funding is provided through membership fees paid to the not-for-profit entity, and developers employed by member organisations contribute code and other resources to the SDK's development. [[manufacturer|Manufacturers]] use the SDK as a [[component]] to build other [[product with digital elements|products with digital elements]]. The not-for-profit entity that publishes that SDK is the steward for it. The foundation's members are not responsible for the SDK's compliance with the CRA. Where [[manufacturer|manufacturers]] use the SDK to build their own [[product with digital elements]], they need to exercise due diligence in accordance with Article 13(5).

Example 34: An individual developer publishes a FOSS library on a public package repository for a given programming language and actively maintains it. In the package documentation, the developer adds a link to collect donations. A [[manufacturer]] downloads that library from the repository for free and integrates it into its own [[product with digital elements]]. The individual developer and the package repository do not have any obligations under the CRA. The [[manufacturer]] that integrates the library needs to exercise due diligence in accordance with Article 13(5).

> [!figure] Figure 1: Stylised flowchart for CRA coverage of [[free and open-source software]]
> 

```mermaid
flowchart TD
    Start((Start)) --> Q1{Is the FOSS a product\nwith digital elements?}
    Q1 -- No --> Note1[/Not a product: e.g. documentation,\nsample code, training material,\nresearch projects/]
    Q1 -- Yes --> Q2{Are you responsible\nfor publishing the FOSS?}
    Q2 -- No --> Q4{Are you a legal person\ni.e. not a natural person?}
    Q2 -- Yes --> Q3{Are you placing it on the\nmarket in the course of\na commercial activity?}
    Q3 -- No --> Q4
    Q3 -- Yes --> Q7{Are you a not-for-profit\norganisation?}
    Q7 -- No --> Manufacturer
    Q7 -- Yes --> Q6
    Q4 -- No --> Outside
    Q4 -- Yes --> Q5{Is the FOSS intended\nfor commercial activities?}
    Q5 -- No --> Outside
    Q5 -- Yes --> Q6{Do you systematically\nprovide support\nfor that FOSS?}
    Q6 -- No --> Outside
    Q6 -- Yes --> Steward

    Manufacturer[Manufacturer]
    Steward[Open-source software steward]
    Outside[Outside of CRA scope]

    style Manufacturer fill:#f8d7da,stroke:#e0a0a8
    style Steward fill:#cce0f5,stroke:#90b8e0
    style Outside fill:#fff3cd,stroke:#e0d090
```

## 4 Substantial modifications and spare parts

90. Article 3(30) of the CRA defines a '[[substantial modification]]' as a change to the [[product with digital elements]] following its [[placing on the market]], which (i) affects the compliance of the [[product with digital elements]] with the essential requirements set out in Part I of Annex I; or (ii) results in a modification to the [[intended purpose]] for which the [[product with digital elements]] has been assessed.

91. The notion of [[substantial modification]] is relevant for ascertaining CRA obligations in a number of cases, including the following: a. in accordance with Article 21, an [[importer]] or [[distributor]] that carries out a [[substantial modification]] of a [[product with digital elements]] already [[placing on the market|placed on the market]] is considered to be its [[manufacturer]]; b. in accordance with Article 22, any natural or legal person that carries out a [[substantial modification]] of a [[product with digital elements]] and makes it available on the market is considered to be its [[manufacturer]]; c. in accordance with Article 69(2), any natural or legal person that carries out a [[substantial modification]] after 11 December 2027 of a [[product with digital elements]] [[placing on the market|placed on the market]] before 11 December 2027 and places it on the market is considered to be its [[manufacturer]]; d. for [[manufacturer|manufacturers]] of [[product with digital elements|products with digital elements]] [[placing on the market|placed on the market]] after 11 December 2027, in order to determine whether a [[product with digital elements]] is required to undergo a new [[conformity assessment]] procedure due to changes made after that date, particularly in light of the iterative nature of [[software]] development.

92. Therefore, it is important to provide guidance to help economic [[operator|operators]] understand when [[hardware]] or [[software]] modifications qualify as [[substantial modification|substantial modifications]].

### 4.1 Physical repairs

93. As stated in recital 42 of the CRA, 'where a [[product with digital elements]] is [[subject]] to 'refurbishment', 'maintenance' and 'repair' as defined in Article 2, points (18), (19) and (20), of Regulation (EU) 2024/1781 of the European Parliament and of the Council, this does not necessarily lead to a [[substantial modification]] of the product, for instance if the [[intended purpose]] and functionalities are not changed and the level of [[risk]] remains unaffected. However, an upgrade of a [[product with digital elements]] by the [[manufacturer]] might lead to changes in the design and development of that product and might therefore affect its [[intended purpose]] and compliance with the requirements set out in this Regulation'. This is consistent with Section 2.1 of the Blue Guide, which recalls that 'a product [[subject]] to important changes or overhaul after it has been [[putting into service|put into service]] must be considered as a new product if: i) its original [[performance of an AI system|performance]], purpose or type is modified, without this being foreseen in the initial [[risk]] assessment; ii) the nature of the hazard has changed or the level of [[risk]] has increased in relation to the relevant Union harmonisation legislation; and iii) the product is made available (or [[putting into service|put into service]] if the applicable legislation also covers [[putting into service]] within its scope). This has to be assessed on a case-by-case basis and, in particular, in view of the objective of the legislation and the type of products covered by the legislation in question'.

94. Operations of refurbishment, maintenance or repair which result in physical modifications of [[product with digital elements|products with digital elements]] already [[placing on the market|placed on the market]] do not necessarily amount to [[substantial modification|substantial modifications]]. A case-by-case assessment should therefore be performed, to ascertain whether such physical modification affects the compliance of the [[product with digital elements]] with the essential requirements of Part I of Annex I, or results in a change to the product's [[intended purpose]] covered by the [[cybersecurity]] [[risk]] assessment.

95. Replacing defective parts or worn items by parts that perform better (e.g. because of technical progress or because the old part is no longer produced) does not in itself trigger a [[substantial modification]] of the repaired [[product with digital elements]]. It only does so if the [[performance of an AI system|performance]] change or the way the repaired [[product with digital elements]] operates (i) affects its compliance with the essential requirements or (ii) results in a change to the [[intended purpose]] that was not covered by the [[risk]] assessment.

Example 35: The [[manufacturer]] of a computer server performs a repair operation, [[switching]] out a defective RAM with a new, better performing one. The server's compliance with the essential requirements is not affected. The server performs better, but its new [[performance of an AI system|performance]] remains within the server's intended use as considered in the [[cybersecurity]] [[risk]] assessment. The computer server is not considered to be substantially modified.

### 4.2 Spare parts

96. Article 2(6) of the CRA establishes that spare parts intended to replace identical [[component|components]] and manufactured according to the same specifications as those [[component|components]] are not [[subject]] to the CRA. Recital 29 further states that the exemption covers both spare parts for [[product with digital elements|products with digital elements]] made available before the CRA entered into application, and spare parts that have already undergone a [[conformity assessment]] procedure as laid down in the Regulation.

97. The exemption in Article 2(6) of the CRA should be understood as applying only where the spare part is specifically supplied to repair or extend the durability of a [[product with digital elements]] already [[placing on the market|placed on the market]] (before or after 11 December 2027). Where a [[product with digital elements]] is supplied as a standalone product, without any connection to the maintenance or repair of a pre-existing [[product with digital elements]], it is [[placing on the market|placed on the market]] within the meaning of the CRA and should not be considered a spare part falling within the scope of Article 2(6). The maintenance or repair purpose should be apparent from the context of the supply, for example through identification of the [[product with digital elements]] or product family in the order or commercial offer, or through supply via after-sales or service channels. Supporting evidence to that effect should also be kept available to [[market surveillance authority|market surveillance authorities]]. The fact that a [[product with digital elements]] could technically be used to replace a [[component]] is not, in itself, sufficient to bring it within the scope of the exemption in the absence of such elements.

98. Accordingly, where a spare part is identical to a [[component]] already included in a [[product with digital elements]] either [[placing on the market|placed on the market]] before the CRA's date of application or that has been [[placing on the market|placed on the market]] in compliance with the CRA, that spare part is not itself [[subject]] to the CRA.

99. The assessment of whether a spare part should be considered identical to a [[component]] should focus on its functional role in the [[product with digital elements]] and the characteristics that may be relevant to [[cybersecurity]]. While a case-by-case assessment is always needed, differences that do not affect the security characteristics or the [[cybersecurity]] [[risk]] profile of the [[component]] do not, in themselves, prevent that spare part from falling within the scope of Article 2(6) of the CRA.

100. By contrast, differences in characteristics relevant to the [[cybersecurity]] of the [[component]], such as algorithms, protocols, cryptographic mechanisms, access control features or other security-relevant characteristics, may mean that the new part cannot be considered identical to the [[component]] it is intended to replace.

101. Where a spare part is not identical to the original [[component]], that spare part constitutes a [[product with digital elements]] in its own right and is therefore [[subject]] to the CRA. In such cases, compliance with the essential requirements must be assessed in light of the replacement [[component]]'s [[intended purpose]]. Of particular relevance is the replacement [[component]]'s function of ensuring compatibility or [[interoperability]] with an existing [[product with digital elements]], including where that product is a [[product with digital elements]] [[placing on the market|placed on the market]] before the CRA entered into application. Where certain essential requirements cannot reasonably be met due to that [[intended purpose]] or technical constraints, the [[manufacturer]] must reflect this in the [[cybersecurity]] [[risk]] assessment and implement appropriate alternative or compensatory [[risk]]-mitigation measures, in order not to undermine the security of the [[product with digital elements]]. As also discussed in Section 2.6 Complex systems, both the technical documentation and the information and instructions to the [[user]] play a key role in transparently describing the identified constraints, the associated [[cybersecurity]] [[risk|risks]] and the [[risk]]-mitigation measures implemented. As explained in Section 4.1 Physical repairs, replacing defective parts or worn items by parts that perform better does not in itself trigger a [[substantial modification]] of the repaired [[product with digital elements]].

Example 36: A [[manufacturer]] has placed connected [[controller|controllers]] on the EU market. In one case, the [[controller]] was [[placing on the market|placed on the market]] in 2026, before the date of application of the CRA. In another case, the [[controller]] was [[placing on the market|placed on the market]] in 2028, in compliance with the CRA. In 2028, a digital communication module in both types of [[controller|controllers]] fails. The [[manufacturer]] supplies as a spare part a replacement module that is identical and manufactured according to the same specifications as the original. In both cases, the replacement module falls within the scope of the exemption in Article 2(6). The spare part is not itself [[subject]] to the CRA, even though it is a [[product with digital elements]], because it replaces an identical [[component]] in a [[product with digital elements]]. The repair does not constitute a [[substantial modification]] of the [[product with digital elements]].

Example 37: A [[manufacturer]] placed a connected industrial [[controller]] on the EU market in 2026, before the date of application of the CRA. In 2028, a communication chip in that [[controller]] fails. As the [[manufacturer]] no longer manufactures that chip, it supplies as a spare part a newer chip with equivalent functionality, but with a different cryptographic implementation and updated secure boot mechanism, in order to maintain compatibility and continued operation. In this case, the replacement chip cannot be considered identical, as the differences in the cryptographic implementation and secure boot mechanism affect the chip's [[cybersecurity]] properties. It therefore does not benefit from the exemption in Article 2(6) and constitutes a [[product with digital elements]] [[subject]] to the CRA. Compliance of the replacement part must be assessed in light of its [[intended purpose]], including its role in ensuring [[interoperability]] with the [[product with digital elements]] [[placing on the market|placed on the market]] before the CRA entered into application.

Example 38: A [[manufacturer]] [[placing on the market|places on the market]] a smart building [[controller]] in 2028 in compliance with the CRA. In 2029, the wireless module in that [[controller]] fails. As the [[manufacturer]] no longer manufactures that module, it supplies as a spare part a new module that performs the same function using the same communication protocols and security mechanisms, but is based on a different chipset and has updated firmware that does not alter characteristics that may be relevant to [[cybersecurity]]. In this case, the replacement module can be considered identical. The module therefore benefits from the exemption in Article 2(6) and is not [[subject]] to the CRA.

102. The exemption for spare parts applies regardless of whether the spare part replaces a [[component]] within a [[product with digital elements]] or whether it replaces a complete [[product with digital elements]] that itself forms part of a larger product, including where that larger [[product with digital elements]] is composed of several integrated [[component|components]], provided that the replacement part is specifically supplied as a spare part, as explained in the preceding paragraphs.

Example 39: In 2027, a [[manufacturer]] [[placing on the market|places on the market]] an industrial automation system that incorporates a programmable logic [[controller]] (PLC) as one of its [[component|components]]. In 2031, the PLC's central [[processing]] unit (CPU) fails. The [[manufacturer]] offers two repair options: (i) the supply of a replacement CPU unit, which can be considered identical to the CPU originally installed; or (ii) the supply of a complete replacement PLC, which can be considered identical to the PLC originally installed. In each case, the replacement is supplied through the [[manufacturer]]'s after- sales service channel as a spare part, and the industrial automation system for which the replacement is intended is clearly identified. In both cases, the replacement falls within the scope of the exemption in Article 2(6), whether the replacement concerns a [[component]] within the PLC, or the PLC as a whole.

### 4.3 Software updates as substantial modifications

103. [[software|Software]] development is iterative in nature, with [[software]] [[product with digital elements|products with digital elements]] already [[placing on the market|placed on the market]] being frequently and continuously updated. In this context, it is useful to provide more guidance to ascertain when [[software]] is to be considered substantially modified. Such guidance is intended in particular to help [[manufacturer|manufacturers]] of [[software]] [[product with digital elements|products with digital elements]] who make changes to their own products determine whether those changes amount to a [[substantial modification]].

104. Recital 39 indicates that a [[product with digital elements]] is substantially modified where a change alters the level of [[cybersecurity]] [[risk]], and where such altered or additional [[risk]] has not been considered by the [[manufacturer]] in its [[risk]] assessment and, consequently, in its implementation of the essential requirements. A [[manufacturer]] should therefore assess, on a case-by-case basis, whether a [[software]] update introduces new or increased [[cybersecurity]] [[risk|risks]], and whether such [[risk|risks]] were already addressed in its [[risk]] assessment.

105. Where a [[manufacturer]] introduces new functionalities in a [[product with digital elements]] that result in a change to the product's [[intended purpose]] as a whole, it is likely that the [[manufacturer]] did not consider such changes in its [[risk]] assessment. In such circumstances, the change would generally qualify as a [[substantial modification]].

Example 40: A [[manufacturer]] [[placing on the market|places on the market]] a dashboard that collects [[data]] from machines and displays trends and alerts, without having the ability to control such machines. The [[manufacturer]] subsequently develops a new version of that dashboard, introducing functionalities that enable it to control the machines, including by adjusting operating parameters and restarting machines following fault conditions. As a result of these changes, the dashboard's [[intended purpose]] has evolved beyond what was envisaged in the [[risk]] assessment, shifting from a situational awareness tool to a [[product with digital elements]] intended to exercise operational control over other devices. The dashboard has therefore been substantially modified.

Example 41: A [[manufacturer]] [[placing on the market|places on the market]] a [[consumer]] [[software]] application intended to organise and display [[personal data]], such as emails, messages, or documents, and to support basic search and filtering functions. The [[manufacturer]] subsequently introduces an update that enables the application to automatically analyse [[user]] content in order to generate behavioural profiles and make automated decisions affecting the prioritisation, suppression, or recommendation of content without [[user]] intervention. As a result of this change, the [[software]]'s [[intended purpose]] shifts from a [[user]]-controlled information management tool to an automated decision-making system, which was not envisaged in the [[risk]] assessment. The application has therefore been substantially modified.

106. At the same time, however, it is possible that a [[manufacturer]] progressively introduces new functionalities already included in its [[risk]] assessment or that do not, in themselves, alter the [[cybersecurity]] [[risk]] profile of the [[product with digital elements]]. This may be the case, for example, where the [[manufacturer]] has anticipated the development of those functionalities, has already described and assessed the associated [[risk|risks]], and has implemented appropriate mitigation measures to ensure continued compliance with the essential requirements. This may also be the case where the new functionalities do not implement changes that introduce new or increased [[risk|risks]]. Updates of this nature should therefore not be regarded as [[substantial modification|substantial modifications]], as they do not increase the [[cybersecurity]] [[risk]] and consequently do not change the implementation of the essential requirements.

Example 42: A messaging application is initially released with functionality limited to one-to-one messaging. The [[manufacturer]]'s [[risk]] assessment covers the later introduction of group messaging, including for example the increased complexity of message routing. In a subsequent update, the [[manufacturer]] adds a group chat functionality together with administrator controls and moderation tools that were already foreseen and assessed in the original design. The update implements functionalities that fall within the scope of the original [[intended purpose]] and [[risk]] assessment. The messaging application has therefore not been substantially modified.

Example 43: A production monitoring system is [[placing on the market|placed on the market]] with read-only dashboards enabled, while automated control features are present in the system architecture but remain disabled. The [[manufacturer]]'s [[risk]] assessment explicitly covers the future activation of automated control loops, including the [[cybersecurity]] [[risk|risks]] associated with closed-loop control, as well as safeguards such as [[operator]] override mechanisms and fail-safe states. In a later update, the [[manufacturer]] enables the automated control features and activates the safeguards as originally assessed. The production monitoring system has therefore not been substantially modified.

107. Conversely, even limited or seemingly minor new functionalities may introduce significant [[cybersecurity]] [[risk|risks]] that impact compliance with the essential requirements. The assessment of [[substantial modification]] should therefore not be based on the scale or complexity of the change, but on its potential adverse impact on the [[cybersecurity]] [[risk]] profile of the [[product with digital elements]] and consequently the implementation of the essential requirements.

Example 44: A [[manufacturer]] introduces an update to a [[software]] application adding a 'remember me' or persistent login feature that stores authentication tokens locally to improve [[user]] convenience. Although the functionality is limited in scope, it introduces new [[risk|risks]] related to token theft, unauthorised access, and session hijacking that were not considered in the [[risk]] assessment. The update therefore affects compliance with the essential requirements. The [[software]] application has been substantially modified.

Example 45: A [[manufacturer]] adds a new logging and diagnostics feature to an existing [[software]] [[product with digital elements]], enabling detailed system logs to be exported for troubleshooting purposes. While the functionality appears minor, it results in the collection and storage of [[sensitive operational data]] in an unencrypted format, introducing [[risk|risks]] of [[data]] exposure that were not previously assessed or mitigated. The change may therefore have a significant impact on the [[cybersecurity]] [[risk]] profile of the [[product with digital elements]]. The [[software]] [[product with digital elements]] has been substantially modified.

108. In line with recital 39 of the CRA, security updates are generally not to be regarded as [[substantial modification|substantial modifications]], as their primary purpose is to reduce the level of [[cybersecurity]] [[risk]] associated with the [[product with digital elements]]. A security update that does not modify that product's [[intended purpose]] and does not introduce new [[cybersecurity]] [[risk|risks]] should therefore not be considered a [[substantial modification]], even where that update may introduce significant technical changes. This includes where certain functionalities are modified or constrained solely for the purpose of mitigating identified vulnerabilities and ensuring continued compliance with the essential requirements.

Example 46: A [[manufacturer]] deploys a security update to address a vulnerability in the codebase of a [[product with digital elements]] by correcting an input validation error that could lead to a buffer overflow, or by fixing a logic flaw allowing authentication bypass through improper session token validation. The update modifies the internal implementation of the [[software]] without affecting that product's [[intended purpose]] or introducing new exposure. Such an update is intended exclusively to reduce the [[cybersecurity]] [[risk]]. The security update should not be considered a [[substantial modification]].

Example 47: A [[manufacturer]] introduces a security update that strengthens existing security configurations, such as tightening firewall rules, disabling unused network ports, changing default administrator password policies, or making multi-factor authentication mandatory where such functionality was already available or foreseen. Although the update may affect how [[user|users]] configure or access the [[product with digital elements]], it does not alter its [[intended purpose]] and serves solely to enhance its security posture. The security update should not be considered a [[substantial modification]].

Example 48: A [[manufacturer]] [[placing on the market|places on the market]] a [[software]] [[product with digital elements]] that secures communications using a configurable encryption framework supporting multiple cryptographic algorithms and key sizes, as described in the product's technical documentation and [[risk]] assessment. The [[risk]] assessment covers all the cryptographic options provided in the [[product with digital elements]] and anticipates the future deprecation of certain algorithms. The [[risk]] assessment also includes mitigation measures, such as cryptographic agility, internal key management, and compatibility testing. In response to emerging cryptographic guidance, the [[manufacturer]] deploys a security update that disables a deprecated algorithm and activates a stronger, already supported alternative, without introducing new external dependencies or altering [[data]] flows. As the update implements a security measure that was foreseen and assessed as part of the original design, and it does not introduce new [[cybersecurity]] [[risk|risks]], the security update should not be considered a [[substantial modification]].

109. By contrast, a security update may qualify as a [[substantial modification]] where, notwithstanding its security objective, the update results in the [[intended purpose]] of the [[product with digital elements]] being modified beyond what was originally foreseen or introduces new or increased [[cybersecurity]] [[risk|risks]]. This may be the case, for example, where an update materially changes that product's boundaries or dependency structure in a way not foreseen in the [[risk]] assessment, e.g. by materially altering [[data]] flows, or adding new externally reachable interfaces.

Example 49: A [[manufacturer]] [[placing on the market|places on the market]] a [[software]] [[product with digital elements]] intended to provide local file encryption for [[data]] stored on a [[user]]'s device, enabling [[user|users]] to encrypt and decrypt files on demand. Following the discovery of a vulnerability in the encryption workflow, the [[manufacturer]] deploys a security update that removes local encryption functionality and instead requires all files to be uploaded to, stored in, and processed by a remote encryption service operated by the [[manufacturer]]. As a result of this change, the [[product with digital elements]] no longer performs local encryption as originally intended, instead functioning as a remote encryption and [[data processing service]]. Although the update is introduced for security reasons, it fundamentally alters that product's [[intended purpose]] in a manner not foreseen in the [[risk]] assessment and therefore qualifies as a [[substantial modification]].

Example 50: A [[manufacturer]] [[placing on the market|places on the market]] a [[software]] [[product with digital elements]] that relies on an established encryption protocol and an internally managed key lifecycle to secure communications between [[component|components]] of the [[product with digital elements]]. In response to newly identified cryptographic weaknesses, the [[manufacturer]] introduces a security update that replaces the existing encryption mechanism with a different protocol requiring the use of an external key management service operated by a [[third party]]. As a result of this change, the dependencies and [[data]] flows of the [[product with digital elements]] are materially altered, introducing new external interfaces and reliance on third-party services not considered in the [[risk]] assessment. Although the update is security-driven, it introduces new [[cybersecurity]] [[risk|risks]], and therefore qualifies as a [[substantial modification]].

110. As stated in point 104 above, whether a [[software]] update constitutes a [[substantial modification]] should be assessed on a case-by-case basis. When performing this assessment, [[manufacturer|manufacturers]] may consider, in a non-exhaustive manner, whether the [[software]] update: a. introduces new threat vectors, such as additional interfaces, communication channels, execution environments, or external dependencies through which threats could materialise; b. enables new attack scenarios, including for example new ways in which unauthorised access, manipulation, interference or misuse of the [[product with digital elements]], or of [[data]] processed by it, could plausibly occur; c. changes the likelihood of previously identified attack scenarios, for example by lowering the effort or expertise required to exploit them, increasing exposure to untrusted actors, or weakening existing safeguards; d. changes the potential impact of previously identified attack scenarios, including for example the scope of affected [[data]] or functions, the severity of operational, safety or economic consequences, or the ability to detect, contain or recover from an incident.

111. In some cases, a [[software]] update does not introduce new threat vectors, does not enable new attack scenarios, and does not materially alter the likelihood or impact of previously identified attack scenarios. This may indicate that the update does not introduce new or increased [[cybersecurity]] [[risk|risks]], provided that the assumptions and mitigation measures relied upon in the [[risk]] assessment remain valid and effective. It is therefore likely that the update does not qualify as a [[substantial modification]].

112. Conversely, a [[software]] update may introduce new threat vectors, enable new attack scenarios, or materially alter the likelihood or impact of existing attack scenarios. In such cases, the [[manufacturer]] should reassess the [[cybersecurity]] [[risk|risks]] of the [[product with digital elements]] and determine whether the essential requirements continue to be met, including whether the update introduces new or increased [[risk|risks]] not foreseen in the [[risk]] assessment.

113. Whether a [[software]] update qualifies as a [[substantial modification]] is relevant when determining whether certain obligations under the CRA apply, as set out in point 91. However, irrespective of that qualification, [[manufacturer|manufacturers]] remain responsible for ensuring the security of [[software]] updates and of their [[product with digital elements]] during its [[support period]], in accordance with the vulnerability handling requirements set out in Part II of Annex I to the CRA. Furthermore, regardless of whether [[software]] updates qualify as [[substantial modification|substantial modifications]] or not, [[manufacturer|manufacturers]] are required to keep the [[risk]] assessment and the technical documentation accurate, complete and continuously up to date, in accordance with Articles 13(7) and 31(2).

### 4.4 Consequences of a substantial modification

114. The consequences of a [[substantial modification]] carried out by an actor other than the original [[manufacturer]] of a [[product with digital elements]] already [[placing on the market|placed on the market]] are addressed in Articles 21 and 22 of the CRA. Article 21 concerns [[importer|importers]] and [[distributor|distributors]], while Article 22 concerns any natural or legal person other than the [[manufacturer]], [[importer]] or [[distributor]].

115. Where the [[substantial modification]] is carried out by the original [[manufacturer]] of the [[product with digital elements]], the consequences derive from the generally established concept of [[substantial modification]] referred to in recital 41 of the CRA and are further elaborated in Section 2.1 of the Blue Guide. That section states that a product that has been [[subject]] to significant changes or an overhaul after being [[placing on the market|placed on the market]] is to be considered a new product where its original [[performance of an AI system|performance]], purpose or type has been modified, the nature of the hazard has changed or the level of [[risk]] has increased, and the [[product with digital elements]] is [[making available on the market|made available on the market]].

116. The generally established consequence is therefore that, where a modification of a [[product with digital elements]] qualifies as a [[substantial modification]] and the modified [[product with digital elements]] is [[making available on the market|made available on the market]], it is to be treated as a new [[product with digital elements]] for the purposes of the CRA. As a result, the act of making the substantially modified product available on the market constitutes a new [[placing on the market]]. This applies whether the [[substantial modification]] is carried out by the original [[manufacturer]] or by another person. In order to ensure that the CRA is applied in a uniform and proportionate manner across the different categories of actor that may carry out a [[substantial modification]], the following subsections address the resulting obligations of the person carrying out the [[substantial modification]] when the substantially modified [[product with digital elements]] is [[placing on the market|placed on the market]]. The consequences for the [[support period]] of the [[product with digital elements]] are addressed in Section 5 [[support period|Support period]].

#### 4.4.1 Substantial modifications carried out by a person other than the original manufacturer

117. In accordance with Articles 21 and 22, where a [[substantial modification]] of a [[product with digital elements]] already [[placing on the market|placed on the market]] is carried out by a natural or legal person other than the [[manufacturer]] of the [[product with digital elements]], the person who carries out the [[substantial modification]] and makes the modified [[product with digital elements]] available on the market is to be regarded as the [[manufacturer]] of the modified [[product with digital elements]], irrespective of whether that person was involved in the original design or [[placing on the market]] of that product.

118. Article 22 further clarifies that the person carrying out the modification is [[subject]] to the obligations laid down in Articles 13 and 14 only in respect of the part of the [[product with digital elements]] affected by the [[substantial modification]], where that modification does not have an impact on the [[cybersecurity]] of the [[product with digital elements]] as a whole.

119. Where a [[substantial modification]] affects compliance with the essential requirements but does not negatively affect the [[cybersecurity]] of the [[product with digital elements]] as a whole, the person carrying out the modification is [[subject]] to Articles 13 (including the obligation to ensure compliance with the essential requirements and to carry out a [[conformity assessment]] procedure) and 14 (reporting obligations) only in relation to the part of the [[product with digital elements]] that has been substantially modified[^16] . Furthermore, the original [[manufacturer]]'s obligations under the CRA continue to apply to the original [[product with digital elements]] [[placing on the market|placed on the market]], ensuring continuity in vulnerability handling and compliance for the unchanged parts.

120. A case of [[substantial modification]] should not be confused with cases of integration, in which a person assembles [[component|components]] (including, where appropriate, by modifying them) into a new [[product with digital elements]] that they themselves [[placing on the market|place on the market]]. In such cases, the integrator is not modifying a [[product with digital elements]] already [[placing on the market|placed on the market]] by another [[manufacturer]]; rather, it is placing a new [[product with digital elements]] of its own on the market. The integrator is the [[manufacturer]] of that new [[product with digital elements]] for the purposes of the CRA and is required to comply with the Regulation in its entirety in respect of the [[product with digital elements]] as a whole. Where the [[manufacturer]] integrates [[component|components]] that are [[subject]] to the CRA, it may rely on the compliance activities of the [[component|components]]' [[manufacturer|manufacturers]] to facilitate its own compliance with the CRA.

Example 51: A company purchases off-the-shelf microcontroller modules and connectivity [[component|components]] from third-party suppliers, develops proprietary firmware and a sensor package, and assembles them into a connected agricultural monitoring [[product with digital elements]] that it [[placing on the market|places on the market]] under its own name. Although the company has modified the underlying microcontroller modules and combined them with other [[component|components]], it is not substantially modifying a [[product with digital elements]] already [[placing on the market|placed on the market]]; rather, it is placing a new [[product with digital elements]] on the market. The company is the [[manufacturer]] of the agricultural monitor for the purposes of the CRA and is required to comply with the Regulation in respect of the agricultural monitor as a whole.

121. Where a [[substantial modification]] carried out by a person other than the original [[manufacturer]] negatively affects the [[cybersecurity]] of the [[product with digital elements]] as a whole, for example because the modification is no longer targeted or limited to a specific [[component]] or subsystem, the modified [[product with digital elements]] [[making available on the market|made available on the market]] should be treated as a new [[product with digital elements]] [[subject]] to the CRA in its entirety. In such cases, that product's overall [[cybersecurity]] [[risk]] profile has changed, and the modification cannot be assessed without considering the [[product with digital elements]] as a whole. The person carrying out the modification is [[subject]] to the obligations of a [[manufacturer]] laid down in Articles 13 and 14 in respect of the modified [[product with digital elements]] as a whole.

#### 4.4.2 Substantial modifications carried out by the original manufacturer

122. Where the [[substantial modification]] is carried out by the original [[manufacturer]], including in the context of iterative development of [[software]] [[product with digital elements|products with digital elements]], that [[manufacturer]] remains the [[manufacturer]] for the purposes of the CRA. However, the substantially modified [[product with digital elements]] is to be considered as newly [[placing on the market|placed on the market]].

123. In accordance with Section 2.1 of the Blue Guide, the original [[manufacturer]] placing the substantially modified [[product with digital elements]] on the market may reuse existing documentation and tests for aspects of the [[product with digital elements]] that are not impacted by the [[substantial modification]]. Particularly where the [[manufacturer]] places substantially modified versions of the same [[product with digital elements]] on the market, the [[conformity assessment]] procedure should focus on the substantially modified parts of the [[product with digital elements]]. Similarly, where a third-party [[conformity assessment]] is performed, the [[conformity assessment body]] should focus its assessment on the substantially modified parts. For unchanged parts of the [[product with digital elements]], it may reuse existing documentation and test results.

124. The proportionality considerations set out in the previous subsection apply equally to [[substantial modification|substantial modifications]] carried out by the original [[manufacturer]] of a [[product with digital elements]] [[placing on the market|placed on the market]] before 11 December 2027. Such a [[substantial modification]] carried out by the original [[manufacturer]] does not, in itself, require the [[manufacturer]] to bring the entire [[product with digital elements]] [[placing on the market|placed on the market]] before that date into full compliance with the CRA, unless the modification negatively affects the [[cybersecurity]] of the [[product with digital elements]] as a whole. Where the modification does not affect the [[cybersecurity]] of the [[product with digital elements]] as a whole, the original [[manufacturer]]'s obligations in respect of the modification should be limited to the substantially modified parts.

## 5 Support period

125. Article 13(8) of the CRA requires [[manufacturer|manufacturers]] to determine the [[support period]] during which the vulnerabilities of the [[product with digital elements]], including its [[component|components]], are handled effectively and in accordance with the essential requirements set out in Part II of Annex I. The [[support period]] reflects the period of time during which the [[product with digital elements]] is expected to be in use (the expected use time), and should be determined in light of the criteria set out in Article 13(8), in particular reasonable [[user]] expectations, the nature of the [[product with digital elements]], including its [[intended purpose]], as well as relevant Union law determining the lifetime of [[product with digital elements|products with digital elements]][^17]. Overall, such criteria are to be taken into account in a manner that ensures proportionality in determining the [[support period]].

126. Article 13(8) further requires that the [[support period]] be at least five years, unless the [[product with digital elements]] is expected to be in use for less than five years, in which case the [[support period]] shall correspond to the expected use time. The minimum [[support period]] therefore operates only as a safeguard, ensuring that vulnerabilities are handled for a sufficiently long period, while allowing [[manufacturer|manufacturers]] to take into account [[product with digital elements|products with digital elements]] with genuinely shorter expected use times. Recital 60 provides more guidance in this respect, clarifying that [[product with digital elements|products with digital elements]] reasonably expected to be in use for longer than five years should accordingly have longer support periods. A [[support period]] of five years is therefore not to be considered as the default for all [[product with digital elements|products with digital elements]]. Instead, the [[manufacturer]] should determine the appropriate [[support period]] in light of the criteria referred to in Article 13(8).

127. Article 13(19) requires [[manufacturer|manufacturers]] to indicate at the time of purchase, in a clear and understandable manner, the end date of the [[support period]] (at least the month and year). It also requires [[manufacturer|manufacturers]] to display a notification to [[user|users]] once the [[support period]] expires, where this is technically feasible in light of the nature of the [[product with digital elements]]. This obligation is intended to provide transparency to [[user|users]] as regards the duration for which security support can be expected.

128. In the case of [[software]] [[product with digital elements|products with digital elements]], which are often developed and released iteratively and where substantially modified versions may be [[placing on the market|placed on the market]] frequently over time, the [[support period]] must be understood in light of this development model. Each substantially modified version of a [[software]] [[product with digital elements]] [[placing on the market|placed on the market]] has to have a declared [[support period]] that complies with Article 13(8). This includes the minimum [[support period]] of at least five years, unless the expected use time of that version is demonstrably shorter, as also clarified in recital 60. Section 5.1 [[substantial modification|Substantial modifications]] and the [[support period]] further clarifies that, where the [[substantial modification]] does not lead to changes in the factors that originally determined the expected use time of the [[product with digital elements]], the original [[support period]] is unaffected (i.e. including in cases where the remaining [[support period]] is less than five years).

129. Article 13(10) provides flexibility for [[software]] [[product with digital elements|products with digital elements]] by allowing [[manufacturer|manufacturers]], under certain conditions, to ensure compliance with the vulnerability handling requirement set out in point (2) of Part II of Annex I (addressing and remediating vulnerabilities) only for the version of the [[software]] [[product with digital elements]] last [[placing on the market|placed on the market]]. This is permitted where [[user|users]] of previously placed versions have access to the version last [[placing on the market|placed on the market]] free of charge and do not incur additional costs to adjust the [[hardware]] and [[software]] environment in which they use that product's original version.

130. For the purposes of Article 13(10), the concept of 'additional costs' should be interpreted in a practical and proportionate manner, taking into account normal and expected practices in [[software]] maintenance and operation. It does not encompass reasonable operational effort that is inherent to applying [[software]] updates or maintaining a secure operating environment, such as personnel time, routine testing, configuration adjustments or upgrades of underlying [[software]] dependencies that are necessary to address end-of-life [[component|components]] or known security vulnerabilities. By contrast, 'additional costs' refers to burdens that go beyond what can normally be expected in the context of [[software]] updates, such as mandatory purchases of new [[hardware]], infrastructure replacement or fundamental changes to the operating environment.

131. For continuously evolving [[software]] [[product with digital elements|products with digital elements]], [[manufacturer|manufacturers]] may place successive substantially modified versions on the market over relatively short intervals and expect [[user|users]] to upgrade regularly. In such cases the declared [[support period]] for each substantially modified version must comply with Article 13(8) at the time it is [[placing on the market|placed on the market]]. In other words, the [[manufacturer]] must declare a new [[support period]] for that substantially modified version. However, [[manufacturer|manufacturers]] may rely on Article 13(10) to discontinue addressing and remediating vulnerabilities for earlier versions once [[user|users]] are able to upgrade to a later version free of charge and without incurring additional costs as referred to above, even if this results in a shorter effective [[support period]] for those earlier versions[^18]. The [[manufacturer]] remains [[subject]] to the other vulnerability-handling requirements of Part II of Annex I, as well as to the reporting obligations of Article 14. As also explained in recital 40, these requirements include, among others, for all subsequent substantially modified versions of the [[software]] [[product with digital elements]] [[placing on the market|placed on the market]]: (i) maintaining a policy on coordinated vulnerability disclosure; and (ii) measures to facilitate the sharing of information about potential vulnerabilities[^19].

Example 52: A [[manufacturer]] places a smartphone model on the EU market and declares a [[support period]] of X years from the date of placement on the market, during which it will provide security updates addressing vulnerabilities. During that period, the [[manufacturer]] releases regular [[software]] updates and substantially modified versions of the operating system, which [[user|users]] can install free of charge without requiring new [[hardware]]. The [[manufacturer]] may, in accordance with Article 13(10), address and remediate vulnerabilities for the latest version of the operating system made available for that smartphone model, provided that earlier versions can be upgraded free of charge and without additional costs. For the duration of the [[support period]], the [[manufacturer]] remains [[subject]] to the other vulnerability handling requirements, such as coordinated vulnerability disclosure and information-sharing measures.

Example 53: A [[manufacturer]] places an [[enterprise]] [[software]] [[product with digital elements]] on the market and releases substantially modified versions every few months, reflecting security improvements, new features and compatibility with updated operating systems and platforms. Each version is [[placing on the market|placed on the market]] with a declared [[support period]] in accordance with Article 13(8). The [[manufacturer]] expects [[user|users]] to upgrade regularly as part of normal operation and provides access to the latest version free of charge. Applying upgrades may require reasonable operational effort, such as testing or configuration adjustments, but does not require additional costs, such as the purchase of new [[hardware]] or fundamental infrastructure changes. In this context, the [[manufacturer]] may rely on Article 13(10) to discontinue addressing and remediating vulnerabilities for earlier versions once [[user|users]] can upgrade to the latest version, while continuing to comply with the other vulnerability-handling requirements for all subsequent substantially modified versions.

### 5.1 Substantial modifications and the support period

132. As set out in Section 4.4 Consequences of a [[substantial modification]], where a modification of a [[product with digital elements]] qualifies as a [[substantial modification]] and the modified [[product with digital elements]] is [[making available on the market|made available on the market]], it is to be treated as a new product for the purposes of the CRA, and the act of making the substantially modified [[product with digital elements]] available on the market constitutes a new [[placing on the market]]. It is therefore useful to clarify the effect that this new [[placing on the market]] has on the [[support period]] of the substantially modified [[product with digital elements]].

133. The [[support period]] of a substantially modified [[product with digital elements]] should be determined by reference to that product's expected use time, in light of the criteria set out in Article 13(8) of the CRA. A [[substantial modification]] should therefore require a reassessment against those criteria, but does not automatically result in the [[support period]] being reset, or even extended. The relevant question is whether the [[substantial modification]] affects the factors that originally determined that product's expected use time and, therefore, the original [[support period]].

134. Where the [[substantial modification]] does not affect those factors, the criteria set out in Article 13(8) continue to indicate the same expected use time as originally determined, and the [[support period]] of the modified [[product with digital elements]] should align with the remaining expected use time of the product as originally [[placing on the market|placed on the market]]. This will typically be the case where the expected use time was determined primarily by factors that the modification does not alter, such as the physical durability of [[hardware]] [[component|components]], where the [[substantial modification]] concerns only [[software]] functionality or back-end services.

Example 54: A [[manufacturer]] [[placing on the market|places on the market]] a robot vacuum cleaner with an expected use time of X years, determined on the basis of the nature of the [[product with digital elements]], including the physical durability and wear characteristics of the [[hardware]] [[component|components]], and taking into account reasonable [[user]] expectations as to that product's lifetime. The [[manufacturer]] sets a [[support period]] of X years. After Y years, the [[manufacturer]] releases a [[software]] update that qualifies as a [[substantial modification]], adding new cleaning modes and navigation features. The [[software]] update does not affect the physical durability of the [[hardware]] and does not alter reasonable [[user]] expectations as to that product's lifetime. The Article 13(8) criteria therefore continue to indicate the same expected use time. The [[support period]] of the modified [[product with digital elements]] aligns with the remaining expected use time as originally determined.

Example 55: A [[manufacturer]] [[placing on the market|places on the market]] a complex industrial machinery [[product with digital elements]], with a cloud back-end that constitutes a [[remote data processing]] solution. The expected use time is X years, determined in light of reasonable [[user]] expectations and the nature of the [[product with digital elements]], such as the physical durability of the machinery [[hardware]] and expected wear and tear. The [[support period]] is set to align with that expected use time at X years. After Y years, the [[manufacturer]] rearchitects the cloud back-end (the [[remote data processing]] solution), introducing new APIs and [[data]] flows, in a manner that qualifies as a [[substantial modification]] of the [[product with digital elements]] but does not alter the nature of that product or affect [[user]] expectations. The Article 13(8) criteria therefore continue to indicate the same expected use time. The [[support period]] of the modified [[product with digital elements]] aligns with the remaining expected use time as originally determined.

135. Where the [[substantial modification]] affects the factors that originally determined the expected use time of the [[product with digital elements]], the [[manufacturer]] should recalculate the [[support period]] to reflect the new expected use time, applying the Article 13(8) criteria accordingly. This may be the case, for example, of revitalising [[hardware]] modifications that extend that product's operational life, or of a substantial reprogramming or rewrite of that product's core [[software]] that materially changes its expected use time[^20].

Example 56: A [[manufacturer]] [[placing on the market|places on the market]] a programmable logic [[controller]] (PLC) with an expected use time of X years, determined primarily on the basis of the nature of the [[product with digital elements]] and the durability of the underlying [[hardware]]. The [[support period]] is set accordingly. Several years after the initial [[placing on the market]], the [[manufacturer]] carries out a [[substantial modification]] consisting of the replacement of the PLC's embedded computing platform, including the [[processor]], memory and runtime environment, with a new generation of [[component|components]] designed for a significantly longer operational lifetime. As a result of the modification, reasonable [[user]] expectations and the nature of the [[product with digital elements]] change: the PLC's [[user]] may now reasonably expect the PLC to remain in productive use beyond its originally declared expected use time, supported by the new computing platform. The Article 13(8) criteria therefore indicate a longer expected use time, and the [[manufacturer]] recalculates the [[support period]] for that specific PLC accordingly.

It should be [[recall of an AI system|recalled]] that, as indicated in Section 4.1 Physical repairs, operations of refurbishment,

## 6 Important and critical products with digital elements

136. Article 7(1) of the CRA establishes that [[product with digital elements|products with digital elements]] that have the core functionality of a product category set out in Annex III to the Regulation are considered to be 'important [[product with digital elements|products with digital elements]]'. Annex III further divides important [[product with digital elements|products with digital elements]] into class I and class II. Similarly, Article 8(1) establishes that [[product with digital elements|products with digital elements]] that have the core functionality of a product category set out in Annex IV to the CRA are considered to be 'critical [[product with digital elements|products with digital elements]]'[^21].

137. The classification of a [[product with digital elements]] as important or critical or, conversely, as belonging to the 'default' category[^22], is of relevance when determining the [[conformity assessment]] procedure the [[manufacturer]] needs to follow, in accordance with Article 32, before it can place that [[product with digital elements]] on the market. Notably, [[product with digital elements|products with digital elements]] in the default category can always rely on the internal control procedure based on module A ('self-assessment')[^23]. Important [[product with digital elements|products with digital elements]] of class I or II and critical [[product with digital elements|products with digital elements]] are [[subject]] to more stringent [[conformity assessment]] procedures. This does not include important [[product with digital elements|products with digital elements]] of class I or II qualifying as [[free and open-source software]] that are [[placing on the market|placed on the market]], for which, in accordance with Article 32(5), [[manufacturer|manufacturers]] are allowed to follow the procedures of the default category.

138. The concept of core functionality is therefore essential for the [[manufacturer]] to determine the applicable [[conformity assessment]] regime. However, this concept is not explicitly defined in the CRA. [[product with digital elements|Products with digital elements]] can perform a range of functions, some of which may be ancillary to that product's core functionality, and should not impact the product's classification as default/important class I/important class II/critical. It is therefore useful to provide more guidance to help [[manufacturer|manufacturers]] correctly perform the relevant [[conformity assessment]] procedures, and to assist [[market surveillance authority|market surveillance authorities]] in ensuring the harmonised enforcement of the CRA across the EU.

### 6.1 Core functionality

139. The core functionality of a [[product with digital elements]] refers to that product's main features and technical capabilities, without which it would not be able to meet its [[intended purpose]]. It can be assessed in light of that product's specific context and conditions of use, taking into account, among others, the information the [[manufacturer]] supplies in the [[instructions for use]], promotional or sales materials and statements, as well as in the technical documentation.

Example 57: A [[software]] [[product with digital elements]] provides an abstraction layer over the underlying [[hardware]] and manages the execution of [[software component|software components]]. Its main features include [[hardware]] and peripheral initialisation, process and memory management, input-output control, scheduling, resource allocation, and the exposure of system services and application programming interfaces (APIs) through which applications interact with the device's [[hardware]] and [[software]] resources. The technical documentation indicates that the [[product with digital elements]] orchestrates computing resources, enforces system configurations, and provides standardised interfaces for [[software]] modules and connected peripherals. The [[manufacturer]] highlights these capabilities as enabling the platform to serve as the central [[software]] environment on which applications can reliably run. The [[product with digital elements]] has the core functionality of an operating system, as described in Annex I, point 11, to Implementing Regulation (EU) 2025/2392.

140. The functionality of a [[product with digital elements]] is rarely restricted exclusively to its core functionality, as [[product with digital elements|products with digital elements]] often - if not always - perform additional functions that do not contribute to the product's core functionality. This may also include incorporating [[component|components]] that have themselves the functionality of another important or critical [[product with digital elements]]. However, the fact that a [[product with digital elements]] performs functions other than or additional to those detailed in the technical descriptions of important or critical [[product with digital elements|products with digital elements]] does not in itself prevent the product from having one such core functionality.

> [!figure] Figure 2: Illustration of how core functionality, and not ancillary functionalities, determine the applicable [[conformity assessment]] procedure
> 
>
> **Diagram description:** A block diagram of a [[product with digital elements]] (example: an operating system). The product contains one core functionality block (teal/dark) and three ancillary functionality blocks (yellow/light): a calculator, a graphics editor, and a browser. A bracket above the core functionality block is labelled "Determines [[conformity assessment]] (CA) procedure", indicating that only the core functionality determines the applicable CA procedure, not the ancillary functionalities.
>
> **Legend:** Teal = Core functionality; Yellow = Ancillary functionality.
>
> **Key takeaway:** The [[conformity assessment]] procedure applicable to a [[product with digital elements]] is determined solely by its core functionality, regardless of any ancillary functionalities the product may also perform.

141. A [[product with digital elements]] may have the ability to perform the functions of an important or critical product category, but nonetheless have a core functionality different from that of such a product category. In those cases, that [[product with digital elements]] would not qualify as an important or critical [[product with digital elements]]. As stated explicitly in Article 7(1) of the CRA for important [[product with digital elements|products with digital elements]] (and applying the same logic for critical [[product with digital elements|products with digital elements]]), the mere integration of an important or critical [[product with digital elements]] does not in itself render the [[product with digital elements]] an important or critical [[product with digital elements]].

Example 58: A smartphone integrates an operating system that provides the functionalities described in Annex I, point 11, to Implementing Regulation (EU) 2025/2392. While the operating system enables the management of [[hardware]] resources and execution of [[software]] applications, the smartphone as a whole has a different core functionality (e.g. that of enabling [[user|users]] to communicate and access information and services). The mere integration of an operating system does not mean that the smartphone has the core functionality of an operating system.

142. Some [[product with digital elements|products with digital elements]] may be similar to an important or critical product category, or belong to the same general product family, yet their core functionality may substantially exceed or fall substantially short of the core functionality of that category. This is not the case where a [[product with digital elements]] includes additional functionalities that merely complement or enhance the core functionality, which itself corresponds to that of an important or critical product category; in such cases, the [[product with digital elements]] retains the core functionality of that category and is classified accordingly. This assessment should be based on that product's main features and technical capabilities, considered objectively in light of its [[intended purpose]], and not on the way in which the [[product with digital elements]] is described or marketed, where that description does not reflect the product's actual technical characteristics.

Example 59: A security orchestration, automation and response (SOAR) [[software]] often has the ability to perform the functions of [[product with digital elements|products with digital elements]] in the category of 'security information and event management (SIEM) systems', i.e. collect [[data]] from multiple sources, analyse and correlate that [[data]] and present it as actionable information for security-related purposes. However, the [[software]]'s core functionality substantially exceeds that of a SIEM, including services such as incident response as core elements of its technical capabilities. Therefore, SOAR [[software]] is generally not considered to have the core functionality of SIEM systems.

> [!figure] Figure 3: Illustration of the core functionality of a [[product with digital elements]] substantially exceeding the definition of an important or critical product category
> 
>
> **Diagram description:** Two nested rectangles. The outer, larger rectangle represents the "Core functionality of a specific product" (e.g. SOAR [[software]]). The inner, smaller rectangle represents the "Core functionality of important or critical product category" (e.g. SIEM systems). The specific product's core functionality is visually larger than and encompasses the category definition, illustrating that the product substantially exceeds the scope of the category.
>
> **Key takeaway:** When a product's core functionality substantially exceeds the definition of an important or critical product category, the product is generally not considered to have the core functionality of that category.

Example 60: Certain log collection and visualisation tools have the ability to ingest log [[data]] and present basic dashboards showing system events. While these tools can support security monitoring activities, their core functionality falls short of that of SIEM systems, as they do not perform [[data]] correlation, nor do they provide actionable security insights. Therefore, such tools are generally not to be considered to have the core functionality of SIEM systems.

> [!figure] Figure 4: Illustration of the core functionality of a [[product with digital elements]] substantially falling short of the definition of an important or critical product category
> 
>
> **Diagram description:** Two nested rectangles, inverse of Figure 3. The outer, larger rectangle represents the "Core functionality of important or critical product category" (e.g. SIEM systems). The inner, smaller rectangle represents the "Core functionality of a specific product" (e.g. log collection tool). The specific product's core functionality is visually smaller than the category definition, illustrating that the product substantially falls short of the scope of the category.
>
> **Key takeaway:** When a product's core functionality substantially falls short of the definition of an important or critical product category, the product is generally not considered to have the core functionality of that category.

143. A [[manufacturer]] may not misrepresent the core functionality of its [[product with digital elements]] in such a way as to escape the [[conformity assessment]] regime applicable to important or critical [[product with digital elements|products with digital elements]], e.g. by overly emphasising or downplaying the role of certain functionalities, so that the product substantially exceeds or falls short of a given core functionality. This would be the case, for example, where there are clear inconsistencies between promotional materials, [[instructions for use]], and technical documentation.

144. A [[product with digital elements]] may not have more than one core functionality for the purposes of determining the applicable [[conformity assessment]] regime. In accordance with Annex VII of the CRA, as part of a product's technical documentation, [[manufacturer|manufacturers]] are required to describe the [[intended purpose]] of their [[product with digital elements]] and the [[conformity assessment]] procedure they have followed. The product's core functionality should therefore be clearly identified. This enables the correct identification of the applicable [[conformity assessment]] regime and allows [[market surveillance authority|market surveillance authorities]] to supervise and check that the Regulation is being applied correctly.

> [!figure] Figure 5: Illustration of how the core functionality a specific [[product with digital elements]] determines the product class and therefore the applicable [[conformity assessment]] procedure
> 
>
> **Diagram description:** A block diagram of a [[product with digital elements]] containing one core functionality block and two ancillary functionality blocks. The core functionality block is split into two zones: one zone (teal) matches the definition of an important or critical product category, and another zone (darker shade) represents functionality that falls short of or exceeds that definition. Decision logic is shown: if the core functionality matches the important/critical product category, the product is classified as important/critical; if it does not match, the product falls under the default category.
>
> **Legend:** Teal = Core functionality matching important/critical product category; Dark teal = Core functionality falling short of or exceeding the category; Yellow = Ancillary functionality.
>
> **Key takeaway:** A [[product with digital elements]] may not have more than one core functionality for the purposes of determining the applicable [[conformity assessment]] regime. The core functionality determines the product class and therefore the applicable [[conformity assessment]] procedure.

145. Some [[product with digital elements|products with digital elements]] are [[placing on the market|placed on the market]] as single [[product with digital elements|products with digital elements]] but are composed of distinct modules with separate functionalities. Where a [[manufacturer]] also makes those modules available on the market separately, such as in the case where they are offered for separate purchase, licensing or subscription, those modules constitute standalone [[product with digital elements|products with digital elements]] in their own right. As such, they are to be classified on the basis of their respective core functionalities (and therefore [[subject]] to the appropriate [[conformity assessment]] regime on the basis of each module's core functionality). This is without prejudice to modules supplied solely as [[component|components]] of an integrated [[product with digital elements]] and not made available separately; in such cases, the core functionality is determined at the level of the integrated [[product with digital elements]].

Example 61: a [[manufacturer]] [[placing on the market|places on the market]] a unified security suite combining multiple modules, including a SIEM, an intrusion detection system, and an analytics module. The [[manufacturer]] also offers those modules for separate subscriptions. In this scenario, each module is a distinct [[product with digital elements]] and is classified on the basis of its own core functionality. The SIEM module is [[subject]] to the [[conformity assessment]] regime for important [[product with digital elements|products with digital elements]] of class I, as its core functionality is that of 'Security information and event management (SIEM) systems'. The intrusion detection system is [[subject]] to the [[conformity assessment]] regime for important [[product with digital elements|products with digital elements]] of class II, as its core functionality is that of 'Firewalls, intrusion detection and prevention systems'. The analytics module is [[subject]] to the [[conformity assessment]] regime for 'default' [[product with digital elements|products with digital elements]], as its core functionality is not that of an important or critical product category.

146. Non-compliance with the obligations set out in Article 32 of the CRA may trigger administrative fines in accordance with Article 64(3).

### 6.2 Conformity assessment for important and critical products with digital elements

147. Once the [[manufacturer]] has determined the core functionality of its [[product with digital elements]], it needs to perform one of the applicable [[conformity assessment]] procedures. The [[manufacturer]] needs to ensure that the [[product with digital elements]] as a whole meets the essential requirements, considering, as appropriate, the security of the [[component|components]] or functionalities integrated into it.

148. A more stringent [[conformity assessment]] procedure, with the involvement of a third-party (based on module B+C, module H or [[cybersecurity]] certification schemes) is mandatory for important [[product with digital elements|products with digital elements]] of class II (with the exception of those qualifying as [[free and open-source software]], in accordance with Article 32(5)) and for critical [[product with digital elements|products with digital elements]][^24]. By contrast, important [[product with digital elements|products with digital elements]] of class I (with the exception of those qualifying as [[free and open-source software]], in accordance with Article 32(5)) are required to undergo a third-party [[conformity assessment]] procedure only if the [[manufacturer]] has not applied or has applied only in part relevant [[harmonised standard|harmonised standards]] the references of which have been published in the Official Journal of the European Union (henceforth, '[[harmonised standard|harmonised standards]]'), [[common specification|common specifications]] or European [[cybersecurity]] certification schemes at assurance level at least 'substantial'[^25].

149. Therefore, for an important [[product with digital elements]] of class I to be eligible for the internal control procedure, (i) all the applicable requirements of a relevant [[harmonised standard]] need to be applied; and (ii) the standard's scope needs to cover at least all the [[cybersecurity]] [[risk|risks]] associated to that product's core functionality.

150. The scope of the [[product with digital elements]] may be broader than the scope foreseen by the relevant [[harmonised standard]], and such additional functions may present different or additional [[cybersecurity]] [[risk|risks]]. The [[manufacturer]] is always required to carry out a [[risk]] assessment pursuant to Article 13(2) and should consequently check whether implementing a [[harmonised standard]] covers all [[risk|risks]] associated with the [[product with digital elements]]. Where implementing the standard does not cover all [[risk|risks]], the [[manufacturer]] should ensure via other means that its [[product with digital elements]] is in compliance with the essential requirements.

151. Therefore, if the [[manufacturer]] of an important [[product with digital elements]] of class I has applied a relevant [[harmonised standard]] that covers the [[risk|risks]] associated to that product's core functionality, it can decide to make use of the internal control procedure to demonstrate its product's conformity. As part of its [[conformity assessment]] activities, the [[manufacturer]] will still be required to demonstrate that all [[risk|risks]] applicable to its [[product with digital elements]] are addressed. Hence, where there is a gap between the coverage of the [[harmonised standard]] and the scope of the [[product with digital elements]] as a whole, the [[manufacturer]] still needs to document which additional measures it has put in place to treat those [[risk|risks]].

Example 62: An antivirus [[software]] has the core functionality of [[software]] that searches for, removes, or quarantines malicious [[software]], as described in Annex I, point 4, to Implementing Regulation (EU) 2025/2392. That [[product with digital elements]] also includes additional features, namely a disk-cleaning function and an anti-tracking function protecting the [[user]] when navigating on the web. The [[manufacturer]] carries out a [[risk]] assessment covering the [[product with digital elements]] in its entirety, including the antivirus's core functionality, the disk-cleaning and the anti-tracking functions. It applies a [[harmonised standard]] covering the [[risk|risks]] associated with the antivirus's core functionality, and additional measures to deal with [[risk|risks]] stemming from additional functions. The [[manufacturer]] is allowed to make use of the internal control procedure for its [[conformity assessment]], covering the [[product with digital elements]] as a whole, including the disk-cleaning and the anti-tracking functions.

> [!figure] Figure 6: Illustration of how the use of a cited [[harmonised standard]] covering only core functionality determines the applicable [[conformity assessment]] procedure
> 
>
> **Diagram description:** A block diagram of a [[product with digital elements]] (example: antivirus [[software]]). The product contains one core functionality block (teal: "searches for, removes, or quarantines malicious [[software]]") and two ancillary functionality blocks (yellow): "disk-cleaning" (ancillary functionality 1) and "anti-tracking" (ancillary functionality 2). A bracket at the bottom labelled "Available cited [[harmonised standard]] (hEN)" spans only the core functionality. Both ancillary functionalities are marked "No hEN", indicating they are not covered by the [[harmonised standard]]. A bracket at the top labelled "Determines [[conformity assessment]] (CA) procedure" spans the core functionality.
>
> **Key takeaway:** When a [[manufacturer]] applies a [[harmonised standard]] that covers the [[risk|risks]] associated with the product's core functionality, it is allowed to use the internal control procedure for its [[conformity assessment]], even if the standard does not cover additional (ancillary) functionalities.

152. This is also the case where the [[product with digital elements]] integrates an additional function that is itself that of another important or critical [[product with digital elements]]. In fact, it is the core functionality of the [[product with digital elements]] as a whole, and not the functionality of the integrated [[component|components]] taken in isolation, that determines whether the [[product with digital elements]] belongs to the important or critical product category (and therefore the applicable [[conformity assessment]] regime). For example, if a [[product with digital elements]] has the core functionality of an important [[product with digital elements]] of class I, that product as a whole is [[subject]] to the [[conformity assessment]] regime applicable to important [[product with digital elements|products with digital elements]] of class I, even though it integrates a [[component]] that is itself a critical [[product with digital elements]]. In these cases, where the [[manufacturer]] applies a [[harmonised standard]] covering the [[risk|risks]] associated to that product's core functionality, it is allowed to make use of the internal control procedure.

Example 63: A [[hardware]] [[product with digital elements]] has the core functionality of a router, as described in Annex I, point 12, to Implementing Regulation (EU) 2025/2392. That [[product with digital elements]] also includes additional functionalities, including firewalling capabilities, as it integrates a firewall [[component]]. The [[manufacturer]] carries out a [[risk]] assessment covering the [[product with digital elements]] in its entirety, including the router's core functionality and the firewall functionality. It applies a [[harmonised standard]] covering the [[risk|risks]] associated with the router's core functionality, and additional measures to deal with [[risk|risks]] stemming from additional functions. For instance, the [[manufacturer]] may apply the [[harmonised standard]] for firewalls to cover the [[risk|risks]] associated with the firewall functionality. The [[manufacturer]] is allowed to make use of the internal control procedure for its [[conformity assessment]], covering the [[product with digital elements]] as a whole, including the firewall functionality.

### 6.3 Implications for presumption of conformity

153. Article 27(1) of the CRA establishes that [[product with digital elements|products with digital elements]] and processes put in place by the [[manufacturer]] which are in conformity with [[harmonised standard|harmonised standards]] or parts thereof, the references of which have been published in the Official Journal of the European Union (OJEU), are presumed to be in conformity with the essential requirements of the CRA covered by those standards or parts thereof[^26]. Article 27(5) extends the same presumption of conformity to [[product with digital elements|products with digital elements]] and processes put in place by the [[manufacturer]] which are in conformity with [[common specification|common specifications]] adopted by the Commission via implementing acts, and Article 27(8) establishes the presumption of conformity for [[product with digital elements|products with digital elements]] and processes put in place by the [[manufacturer]] for which an EU statement of conformity or certificate has been issued under a European [[cybersecurity]] certification scheme adopted pursuant to Regulation (EU) 2019/881, if this has been specified via delegated acts in accordance with Article 27(9)[^27].

154. Therefore, where the [[manufacturer]] has applied a [[harmonised standard]] whose references have been published in the OJEU, it benefits from a presumption of conformity for the [[risk|risks]] covered by that standard. This could be the case, for example, where the referenced [[harmonised standard]] addresses all the [[risk|risks]] associated with the core functionality of a [[product with digital elements]] and there are no additional functionalities that present [[cybersecurity]] [[risk|risks]]. For instance, it is expected that the [[harmonised standard]] for routers will address at least the [[risk|risks]] associated with the core functionality of these [[product with digital elements|products with digital elements]]. If such a product does not contain any additional functionalities or if these additional functionalities do not present [[risk|risks]] unaddressed by the standard, the [[product with digital elements]] can benefit from presumption of conformity.

155. In the cases discussed in points 151 and 152, the [[manufacturer]] is allowed to use the internal control procedure because the [[harmonised standard]] covers the [[risk|risks]] associated with the core functionality of the [[product with digital elements]]. However, the [[product with digital elements|products with digital elements]] described in those examples may be broader than the scope of the [[harmonised standard|harmonised standards]], and additional functionalities may present [[cybersecurity]] [[risk|risks]] that are not addressed by such [[harmonised standard]]. Those [[product with digital elements|products with digital elements]] may therefore not benefit from presumption of conformity for those additional functionalities.

Example 64: An antivirus [[software]] has the core functionality of [[software]] that searches for, removes, or quarantines malicious [[software]], and [[risk|risks]] associated with that core functionality are covered by the [[harmonised standard]]. That [[product with digital elements]] also includes additional functionalities, namely a disk-cleaning function and an anti-tracking functionality protecting the [[user]] when navigating on the web, whose [[risk|risks]] are not covered by the [[harmonised standard]]. If the [[harmonised standard]] is applied, the [[manufacturer]] is allowed to make use of the internal control procedure for its [[conformity assessment]]. It will benefit from presumption of conformity for the [[risk|risks]] associated with that product's core functionality, but not for the [[risk|risks]] associated with additional functionalities.

> [!figure] Figure 7: [[harmonised standard|Harmonised standard]] grants presumption of conformity (PoC) for core functionality, as it addresses all [[risk|risks]] associated with that core functionality, but not for ancillary functionalities
> 
>
> **Diagram description:** Same product layout as Figure 6 (antivirus [[software]] with core functionality and two ancillary functionalities: disk-cleaning and anti-tracking). A bracket at the bottom labelled "Available cited [[harmonised standard]] (hEN)" spans only the core functionality. The core functionality is marked "hEN (PoC)" indicating it benefits from the presumption of conformity. Both ancillary functionalities are marked "No hEN (no PoC)", indicating they do not benefit from the presumption of conformity.
>
> **Legend:** Teal = Core functionality of important or critical product category; Yellow = Ancillary functionality; Hatched overlay = Functionality covered by hEN.
>
> **Key takeaway:** The presumption of conformity granted by a [[harmonised standard]] applies only to the [[risk|risks]] covered by that standard. Where the standard covers only the core functionality, ancillary functionalities do not benefit from the presumption of conformity.

Example 65: In the same scenario as the previous example, the [[harmonised standard]] has now been updated to also cover [[risk|risks]] associated with one of the additional functionalities, namely the disk-cleaning function, but not the other (i.e. the anti- tracking function). If the [[harmonised standard]] is applied, the [[manufacturer]] is allowed to make use of the internal control procedure for its [[conformity assessment]]. It will benefit from a presumption of conformity for the [[risk|risks]] associated with that product's core functionality and for the disk-cleaning functionality, but not for the [[risk|risks]] related to the anti-tracking functionality.

> [!figure] Figure 8: [[harmonised standard|Harmonised standard]] grants PoC for core functionality and ancillary functionality 1, as it addresses all [[risk|risks]] associated with those two functionalities, but not for ancillary functionality 2
> 
>
> **Diagram description:** Same product layout as Figures 6 and 7 (antivirus [[software]] with core functionality and two ancillary functionalities: disk-cleaning and anti-tracking). A bracket at the top labelled "Determines [[conformity assessment]] (CA) procedure" spans the core functionality. A bracket at the bottom labelled "Available cited [[harmonised standard]] (hEN) - PoC for core functionality" now spans both the core functionality and ancillary functionality 1 (disk-cleaning). The core functionality is marked "hEN (PoC)" and ancillary functionality 1 (disk-cleaning) is also marked "hEN (PoC)", indicating both benefit from the presumption of conformity. Ancillary functionality 2 (anti-tracking) is marked "No hEN (no PoC)", indicating it does not benefit from the presumption of conformity.
>
> **Legend:** Teal = Core functionality of important or critical product category; Yellow = Ancillary functionality; Hatched overlay = Functionality covered by hEN.
>
> **Key takeaway:** Where a [[harmonised standard]] has been updated to cover [[risk|risks]] associated with one of the ancillary functionalities in addition to the core functionality, the presumption of conformity extends to both the core functionality and that ancillary functionality, but not to other ancillary functionalities whose [[risk|risks]] remain unaddressed by the standard.

## 7 Cybersecurity risk assessment and integration of products with digital elements and components

### 7.1 On the evaluation and treatment of cybersecurity risks

156. The [[cybersecurity]] [[risk]] assessment provided for in Article 13(2) of the CRA requires [[manufacturer|manufacturers]] to identify relevant [[risk|risks]] and assess their potential impact on the [[product with digital elements]]. [[manufacturer|Manufacturers]] also need to implement appropriate measures to address those [[risk|risks]], in accordance with the essential requirements of Annex I.

157. In organisational [[risk]] management, [[risk|risks]] are commonly evaluated against acceptance criteria derived from the organisation's internal objectives or [[risk]] appetite. By contrast, under the CRA, residual [[cybersecurity]] [[risk]] should be assessed in light of the requirement that the [[product with digital elements]] [[placing on the market|placed on the market]] ensures an appropriate level of [[cybersecurity]] based on the [[risk|risks]], taking into account its [[intended purpose]] and [[reasonably foreseeable use]].

158. Accordingly, the [[manufacturer]]'s internal [[risk]] tolerance, commercial strategy or mere cost considerations are not relevant in determining whether [[risk|risks]] have been addressed. For the purposes of Articles 13(2) and (3), [[manufacturer|manufacturers]] must be in a position to determine whether identified [[cybersecurity]] [[risk|risks]] have been sufficiently addressed through the implementation of the essential requirements of Part I of Annex I, in light of the [[intended purpose]], [[reasonably foreseeable use]] and conditions of use, including, where relevant, the operational environment (for example the intended [[user|users]] of the [[product with digital elements]]) and the assets to be protected, taking into account the length of time the [[product with digital elements]] is expected to be in use.

159. Residual [[cybersecurity]] [[risk]] is an inherent outcome of [[risk]] assessment and [[risk]] treatment. It is recognised that [[cybersecurity]] [[risk|risks]] cannot, in practice, be entirely eliminated. However, the existence of residual [[risk]] does not imply that any [[risk]] may be accepted at the [[manufacturer]]'s discretion. A [[product with digital elements]] may only be [[placing on the market|placed on the market]] where the residual [[risk|risks]], once appropriate measures have been taken, have been sufficiently addressed through the implementation of the essential requirements, taking into account the [[intended purpose]] and [[reasonably foreseeable use]] of the [[product with digital elements]].

160. In accordance with Article 13(3), where [[cybersecurity]] [[risk|risks]] are identified, [[manufacturer|manufacturers]] are required to address them through appropriate measures, including at product level. Depending on the circumstances, this may involve for example reducing the attack surface, implementing technical safeguards, limiting or adapting functionality, or defining the [[intended purpose]] of the [[product with digital elements]] more precisely. [[manufacturer|Manufacturers]] may also take steps to shape the [[reasonably foreseeable use]] of the [[product with digital elements]], for instance through [[risk]] communication, [[user]] guidance, or [[user]] interface design, in order to steer [[user]] behaviour toward secure use patterns.

161. The CRA does not provide for the transfer of [[cybersecurity]] [[risk]] or responsibility to [[user|users]] or [[third party|third parties]] to compensate for shortcomings in product design or to justify leaving [[cybersecurity]] [[risk|risks]] unaddressed. The obligation to place a secure [[product with digital elements]] on the market and to demonstrate conformity with the essential requirements remains with the [[manufacturer]].

162. Information and instructions provided to [[user|users]] may be used to support the secure deployment and operation of the [[product with digital elements]], including where the [[manufacturer]] has chosen to restrict the [[intended purpose]] of that product to trusted environments, and to inform [[user|users]] of residual [[risk|risks]], in a manner that is appropriate to the nature of the [[product with digital elements]] and its intended [[user|users]].

Example 66: A [[manufacturer]] develops an industrial sensor for use in trusted environments. For the sensor to perform its functionality correctly, the [[manufacturer]] does not implement measures to protect against physical attacks on the sensor itself. To mitigate the associated [[risk|risks]] identified in the [[risk]] assessment, the [[manufacturer]] limits the sensor's [[intended purpose]] to use only in trusted environments where unauthorised physical access to the [[product with digital elements]] is prevented. Information and instructions to the [[user|users]] provide clear information on these limitations on the sensor's use, in a manner that is appropriate to the nature of the [[product with digital elements]] and its intended [[user|users]].

Example 67: A [[manufacturer]] develops a [[software]] application for professional use on managed desktop and mobile devices. The application processes locally stored [[special categories of personal data|sensitive data]] and [[user]]-generated content. During the [[risk]] assessment, the [[manufacturer]] identifies the [[risk]] of unauthorised access to such [[data]] if they are stored in clear text on the device. Rather than designing and implementing a proprietary encryption mechanism within the application itself, the [[manufacturer]] chooses to rely on the encryption and key management functions provided natively by the operating system on which the application is intended to run, as the operating system's built-in cryptographic services are mature and regularly maintained.

163. Where the [[cybersecurity]] [[risk]] assessment identifies [[risk|risks]] that cannot be adequately addressed through appropriate measures, compliance with the CRA may require changes to the design, functionality or [[intended purpose]] of the [[product with digital elements]]. Considerations relating solely to cost or commercial feasibility do not constitute sufficient grounds for leaving such [[risk|risks]] untreated where this would prevent the [[product with digital elements]] from meeting the essential requirements.

### 7.2 On designing, developing and producing products with digital elements in such a way that they ensure an appropriate level of cybersecurity based on the risks

164. The essential [[cybersecurity]] requirement referred to in point (1) of Part I of Annex I to the CRA provides that [[product with digital elements|products with digital elements]] are designed, developed and produced in such a way that they ensure an appropriate level of [[cybersecurity]] based on the [[risk|risks]].

165. This essential requirement is aimed at addressing all [[cybersecurity]] [[risk|risks]] that have been identified as part of the [[cybersecurity]] [[risk]] assessment. Particularly, this includes [[cybersecurity]] [[risk|risks]] that are not otherwise adequately addressed as part of the implementation of the essential requirements of Part I of Annex I other than point (1). This essential requirement is different from the legal obligation to carry out a [[cybersecurity]] [[risk]] assessment, which is to be carried out pursuant to Article 13(2).

166. Where all relevant [[cybersecurity]] [[risk|risks]] related to a [[product with digital elements]] are treated by implementing adequate measures to address the applicable essential requirements other than point (1), the essential requirement referred to in point (1) of Part I of Annex I is deemed to be fulfilled. Conversely, where the [[cybersecurity]] [[risk]] assessment identifies additional [[risk|risks]] not fully addressed by such measures, [[manufacturer|manufacturers]] are required to implement appropriate measures on the [[product with digital elements]] to address those [[risk|risks]], so that they comply with the essential requirement referred to in point (1) of Part I of Annex I. In practice, in most cases, compliance with the other essential requirements is expected to result in compliance with this requirement.

### 7.3 Risk assessment and due diligence in relation to external dependencies and integrated components

167. The CRA establishes two distinct but complementary obligations for [[manufacturer|manufacturers]] in relation to [[cybersecurity]] [[risk]] management. First, Article 13(2) requires [[manufacturer|manufacturers]] to carry out a [[cybersecurity]] [[risk]] assessment for the [[product with digital elements]] itself. Second, Article 13(5) imposes the obligation to exercise due diligence with respect to integrated [[component|components]]. Together, these two obligations are designed to ensure that the [[product with digital elements]] remains secure, including where it relies on [[remote data processing]] solutions, remote services, or third-party [[software]] or [[hardware]] [[component|components]].

168. The [[cybersecurity]] [[risk]] assessment concerns the identification and management of relevant [[risk|risks]] that may affect the [[product with digital elements]], including [[risk|risks]] that originate outside the product itself, such as external networks, environmental factors, or other external aspects which might affect the [[product with digital elements]] or on which the product relies. For such external [[risk|risks]], the CRA does not require [[manufacturer|manufacturers]] to control or govern the external environment. Rather, [[manufacturer|manufacturers]] are required to identify such [[risk|risks]] and to mitigate them through the design and development of the [[product with digital elements]] itself. This will involve implementing the appropriate essential requirements set out in Part I of Annex I and, where necessary, providing information and instructions to [[user|users]] on integration or deployment [[risk|risks]].

169. For example, a [[manufacturer]] may identify a [[risk]] that unauthorised persons may gain access to back-end systems that are not part of the [[product with digital elements]] itself while the product is in operation, and attempt to send malicious commands to the [[product with digital elements]]. Such back-end systems, where they are not designed and developed by the [[manufacturer]] or under its responsibility, or where they do not support one of the functions of the [[product with digital elements]], do not constitute [[remote data processing]] solutions and therefore fall outside the scope of the [[product with digital elements]] for the purposes of the CRA. Nonetheless, the CRA requires the [[manufacturer]] to address the [[risk]] they may pose through product-level measures, such as by requiring cryptographic authentication of remote commands, verifying the integrity of configuration changes, or generating security-relevant logs or alerts when abnormal behaviour is detected. Similarly, where a [[manufacturer]] identifies a [[risk]] resulting from such an external service becoming unavailable, for example due to power outages or failures of the infrastructure, the CRA may require product-level mitigation measures against such [[cybersecurity]] [[risk|risks]], e.g. ensuring that the outage does not cause the [[product with digital elements]] to enter into insecure states. In such cases, the CRA regulates how the [[product with digital elements]] responds to those external [[risk|risks]]; it does not impose obligations on how the back-end infrastructure is organised, staffed or operated, nor does it treat that infrastructure as part of the [[product with digital elements]].

170. Due diligence relates to elements that form part of the [[product with digital elements]] itself, in particular integrated [[software]] or [[hardware]] [[component|components]] provided by a [[third party]]. [[manufacturer|Manufacturers]] are required to take appropriate measures to ensure that such [[component|components]] do not undermine the compliance of the [[product with digital elements]] with the essential requirements. This can only be achieved by determining what the [[product with digital elements]] requires from its [[component|components]] in order to meet its [[cybersecurity]] objectives, and verifying, in a [[risk]]-based manner, that those [[component|components]] are in line with the product's needs, as also indicated in recital 34.

171. In alignment with its [[cybersecurity]] [[risk]] assessment, the [[manufacturer]] has to identify the requirements that the integrated [[component]] should satisfy. For example, if the [[product with digital elements]] relies on cryptographic functions, update mechanisms or secure communications provided by a [[component]], the [[manufacturer]] must, as part of its due diligence, identify those needs and verify that the [[component]] satisfies them. Evidence for this purpose may consist of documentation obtained from the [[component]] [[manufacturer]], such as technical specifications, security documentation or relevant conformity or assurance documentation. Where appropriate, the [[manufacturer]] may also carry out tests to verify that those [[component|components]] adequately perform the relevant functions. While due diligence is a separate legal obligation, it supports and underpins the [[manufacturer]]'s ability to demonstrate compliance with the essential requirements for the [[product with digital elements]] as a whole.

172. When assessing the [[risk|risks]] to the [[product with digital elements]] as a whole, elements outside of the product, such as environmental elements, external infrastructure, other systems or networks, must be considered in the [[cybersecurity]] [[risk]] assessment and, where relevant, addressed through product-level measures to ensure compliance of the [[product with digital elements]] with the essential requirements. [[component|Components]] that are physically or logically integrated into the [[product with digital elements]] but sourced from a [[third party]] must also be considered as part of the [[risk]] assessment. However, for compliance purposes, the [[manufacturer]] should treat those as externally supplied [[component|components]] whose properties are verified through due diligence upon integration, as the [[manufacturer]] may not have redesigned or redeveloped them.

173. The same logic applies during the development and integration of [[component|components]]. Where the [[manufacturer]] develops functionalities itself, it must directly implement the essential requirements. Where the [[manufacturer]] integrates [[component|components]] developed by others, it must ensure through due diligence, that those [[component|components]] can be used in a way that enables the [[product with digital elements]] as a whole to comply. In both cases, the objective remains the same: that the [[product with digital elements]], as [[placing on the market|placed on the market]], achieves an appropriate level of [[cybersecurity]] as required by the CRA, taking into account the [[risk|risks]] identified in the [[cybersecurity]] [[risk]] assessment.

### 7.4 Reuse of risk assessments and conformity documentation for families of products with digital elements

174. [[manufacturer|Manufacturers]] may [[placing on the market|place on the market]] [[product with digital elements|products with digital elements]] that are similar, for example different variants, models or configurations of the same product family. Where such [[product with digital elements|products with digital elements]] share the same architecture, security-relevant design and [[intended purpose]], and are exposed to the same [[cybersecurity]] [[risk|risks]], the CRA does not require [[manufacturer|manufacturers]] to treat each variant as an entirely separate [[product with digital elements]] for the purposes of [[risk]] assessment and [[conformity assessment]].

175. In such cases, provided that all variants concerned are adequately covered in terms of relevant [[risk|risks]] and essential requirements, [[manufacturer|manufacturers]] may rely on: (i) a single [[cybersecurity]] [[risk]] assessment carried out in accordance with Article 13(2) of the CRA; (ii) a single set of technical documentation; and (iii) a single [[conformity assessment]] procedure. This also allows a single EU declaration of conformity to be issued for the group of [[product with digital elements|products with digital elements]], as long as it clearly identifies the product variants to which it applies.

176. The decisive factor is whether the differences between the variants are relevant to [[cybersecurity]]. Variations that do not affect the [[cybersecurity]] properties of the [[product with digital elements]], such as differences in colour, form factor, memory size, or other non-security-relevant characteristics, do not require separate [[risk]] assessments or conformity assessments. Conversely, in some cases variants may differ in ways that affect the implementation of essential requirements, for example through different communication interfaces, [[software]] stacks, update mechanisms or remote connectivity. In such cases, those differences must be reflected in the [[risk]] assessment and, where necessary, in the [[conformity assessment]] and technical documentation.

177. [[manufacturer|Manufacturers]] remain responsible for ensuring that the [[risk]] assessment and the related documentation accurately reflect the [[product with digital elements|products with digital elements]] [[placing on the market|placed on the market]]. Where a new variant introduces new [[cybersecurity]] [[risk|risks]] or changes the way essential requirements are implemented, the existing [[risk]] assessment and conformity documentation must be updated accordingly. Reliance on a single [[conformity assessment]] is only possible to the extent that the [[product with digital elements|products with digital elements]] do not present differences with regards to their [[cybersecurity]] properties.

## 8 Remote data processing

178. Article 3(1) of the CRA defines a [[product with digital elements]] as 'a [[software]] or [[hardware]] product and its [[remote data processing]] solutions, including [[software]] or [[hardware]] [[component|components]] being [[placing on the market|placed on the market]] separately'. In this light, the [[manufacturer]] must consider the [[product with digital elements]] as a whole, including its [[remote data processing]] solutions (RDPS). For instance, when demonstrating that the [[product with digital elements]] complies with the essential requirements laid out in Annex I, RDPS must be taken into account, starting with the [[risk]] assessment (Article 13(2)). The same is valid when considering lifecycle obligations, such as reporting of [[actively exploited vulnerability|actively exploited vulnerabilities]] and severe incidents (Article 14).

179. The purpose of this guidance is to provide further support to [[manufacturer|manufacturers]] in determining whether their [[product with digital elements]] has RDPS as defined in the CRA and how to fulfil their compliance obligations in this regard. After an initial analysis of the definitions and recitals laid down in the CRA, this guidance will provide questions to guide [[manufacturer|manufacturers]] in clarifying if their [[product with digital elements]] includes RDPS (see Section 8.1 What is considered a [[remote data processing]] solution for a [[product with digital elements]]?). Subsequently, it will elaborate on the technical implications of RDPS and how to assess compliance with the CRA (see Section 8.2 Practical and technical implications of [[remote data processing]] solutions and reliance on third-party solutions).

180. In fact, Article 3(2) defines the concept of '[[remote data processing]]' as '[[data]] [[processing]] at a distance for which the [[software]] is designed and developed by the [[manufacturer]], or under the responsibility of the [[manufacturer]], and the absence of which would prevent the [[product with digital elements]] from performing one of its functions'. RDPS is therefore defined as the [[software]] elements ('the part of an [[electronic information system]] which consists of computer code', as defined in Article 3(4)) of [[data]] [[processing]] at a distance. It is not meant to include, as part of the scope of the [[product with digital elements]], the [[hardware]] that [[remote data processing]] may rely upon.

181. Recitals 11 and 12 give further explanations on how this concept should be interpreted. Recital 11 clarifies that the goal of covering [[remote data processing]] solution is that 'products are adequately secured in their entirety by their [[manufacturer|manufacturers]], irrespective of whether [[data]] is processed or stored locally on the [[user]]'s device or remotely by the [[manufacturer]]'. It also states that 'requirements concerning the [[remote data processing]] solutions falling within the scope of this Regulation do therefore not entail technical, operational or organisational measures aiming to manage the [[risk|risks]] posed to the security of a [[manufacturer]]'s [[network and information system|network and information systems]] as a whole.'

182. Therefore, it results from recital 11 that the intent is not for the CRA requirements to cover the whole IT infrastructure of an organisation, but only [[software component|software components]] that allow for the execution of the [[data]] [[processing]] solution. For example, internal systems relating to the [[manufacturer]]'s own human resources, payrolls, [[customer]] relationship management, continuous integration/continuous delivery (CI/CD) pipelines, the distribution of security updates to edge locations, should not be considered as RDPS. Likewise, systems linked to auditing and testing activities, such as penetration testing, threat hunting and red teaming are outside the scope of a [[product with digital elements]] as covered by the CRA. It is important to note that while applying effective and regular tests and reviews of the security of the [[product with digital elements]] is an essential requirement laid down in point (3) of Part II of Annex I to the CRA, this does not mean that such activities are to be considered RDPS for the [[product with digital elements]].

183. Recital 12 focuses on cloud services and elaborates on the circumstances under which cloud services might be considered RDPS. The recital concludes by recalling that cloud computing services and cloud service models fall within the scope of Directive (EU) 2022/2555 (NIS 2)[^28], which establishes [[cybersecurity]] [[risk]]-management requirements for cloud computing service [[provider|providers]]. Those requirements are further specified by Commission Implementing Regulation (EU) 2024/2690[^29].

### 8.1 What is considered a remote data processing solution for a product with digital elements?

184. The definition of [[remote data processing]] laid down in Article 3(2), thus, relies on three elements: (i) whether [[data]] [[processing]] is 'at a distance'; (ii) whether the absence of such [[data]] [[processing]] would prevent the [[product with digital elements]] from performing one of its functions; and (iii) whether the [[software]] is designed and developed by the [[manufacturer]], or under its responsibility. The next three subsections address each of these elements in more detail.

#### 8.1.1 The notion of 'at a distance'

185. The notion of 'at a distance' referred to in Article 3(2) is relevant but not sufficient to determine whether a [[product with digital elements]] includes RDPS. Furthermore, given the variety of solutions that might fall under this concept, it is not possible to provide an exhaustive definition of 'at a distance'. A case-by-case assessment by the [[manufacturer]] is needed.

186. Recital 11 of the CRA mentions [[data]] processed or stored 'remotely by the [[manufacturer]]' as opposed to [[data]] processed or stored 'locally on the [[user]]'s device'. [[remote data processing|Remote data processing]] typically takes place outside the [[user]] environment of a [[product with digital elements]] or an organisation's operational environment (for a professional [[user]]). This, however, does not prevent [[processing]] from also taking place close to the device ('at the edge'). The transmission of [[data]] may be wired (e.g. ethernet cable) or wireless (e.g. Wi-Fi, Bluetooth). Cloud computing, including edge computing, is a typical example of [[data]] [[processing]] taking place 'at a distance'. For instance, in the case of a cloud-based function accessed by the [[user]] from a mobile application, part of the [[data]] [[processing]] takes place on the cloud, outside of the [[user]]'s environment.

187. It is important to note that RDPS are not necessarily operated on third-party cloud infrastructure. [[remote data processing|Remote data processing]] running on local servers on the [[manufacturer]]'s premises can also constitute RDPS. In other words, a solution run on- premises and on a private cloud is just as likely to qualify as RDPS as a solution run on a public cloud and off-premises.

188. The two decisive and cumulative questions that determine whether [[data]] [[processing]] is covered by CRA as [[remote data processing]] solution are set out below, in Sections 8.1.2 and 8.2. If both questions are answered in the affirmative, the [[remote data processing]] qualifies as RDPS.

#### 8.1.2 Would the absence of such data processing prevent the product with digital elements from performing one of its functions?

189. As laid down in the definition of '[[remote data processing]]' included in Article 3(2), for [[data]] [[processing]] at a distance to qualify as an RDPS, its absence would need to prevent the [[product with digital elements]] from performing one of its functions. The notion of 'functions' included in this definition is not limited to the 'core functionality' or '[[intended purpose]]' of the [[product with digital elements]], as the CRA does not impose such a limitation. The functions within the scope of the CRA are both functions that directly fulfil the [[intended purpose]] of the [[product with digital elements]] as experienced by [[user|users]] and functions that support the product's overall [[performance of an AI system|performance]].

190. Examples of functions where [[data]] [[processing]] at a distance may happen and that would prevent a [[product with digital elements]] from performing one of its functions would include: (i) sending commands to a device; (ii) synchronising files; (iii) onboarding the [[user]]; (iv) configuration (personalisation of the [[product with digital elements]]); (v) automated distribution of updates, including feature update and security patching; (vi) identity and access management.

191. In some cases, the [[user]] can use a function both remotely and manually (e.g. [[switching]] a light bulb with an app or manually). Having this option does not exclude qualification as RDPS of the [[data]] [[processing]] associated with the remote [[performance of an AI system|performance]] of the function. Performing this function remotely is also considered part of the functions the [[product with digital elements]] offers.

192. By contrast, where the absence of a certain [[data]] [[processing]] does not prevent the [[product with digital elements]] from performing one of its functions, such [[processing]] is not considered as an RDPS within the meaning of the CRA. This includes, for example, remote analysis of telemetry [[data]] collected purely for statistical purposes or future product development.

193. Nevertheless, even when [[data]] [[processing]] does not support a function of a [[product with digital elements]], [[manufacturer|manufacturers]] may need to consider if those remote [[component|components]] introduce [[risk|risks]] to the [[product with digital elements]] as part of their [[cybersecurity]] [[risk]] assessment (e.g. in light of the product's operational environment), and mitigate such [[risk|risks]] accordingly (e.g. through product-level mitigations).

194. Websites are a specific case that deserves further clarification, as also explained in Section 2.1 [[placing on the market|Placing on the market]]. Websites are not within the scope of RDPS if they do not support a function of a [[product with digital elements]], as explained in recital 11 of the CRA. It is not sufficient for a website to contain information about a [[product with digital elements]] to be considered within the scope of RDPS, even if the product redirects to such website. For example, redirecting [[user|users]] to an external webpage that provides information and instructions to [[user|users]] is not an RDPS. By contrast, a website may be within the scope of RDPS if it enables or supports a function of a [[product with digital elements]]. For example, an authentication portal that issues credentials or tokens required for the [[product with digital elements]] to operate would be considered RDPS (provided that the other criteria of the definition are also met).

#### 8.1.3 Has the software been designed and developed by the manufacturer, or under its responsibility?

195. The definition of '[[remote data processing]]' of Article 3(2) of the CRA further specifies that the [[software]] of such [[data]] [[processing]] at a distance needs to be designed and developed by the [[manufacturer]], or under its responsibility. [[remote data processing|Remote data processing]] entirely developed and designed by the [[manufacturer]] (in-house) would naturally qualify as RDPS. This would also be the case if [[manufacturer|manufacturers]] rely on an external service [[provider]] for the development and design of a solution (i.e. 'under its responsibility'). The phrase 'under the responsibility of the [[manufacturer]]' refers to remote [[processing]] solutions that are tailor-made for the [[manufacturer]]. These are cases where the [[manufacturer]] is not merely licensing an existing [[product with digital elements]] or service that a service [[provider]] offers to its [[customer|customers]] or slightly modified versions thereof. '[U]nder the responsibility of the [[manufacturer]]' entails that the [[software]] is built solely by or on behalf of the [[manufacturer]], based on designs and specifications provided by it.

196. In understanding RDPS, the notion of 'who operates the solution' is not a decisive factor, as the CRA definition only refers to the design and development of the RDPS. This is consistent with the CRA approach whereby requirements and obligations are on [[manufacturer|manufacturers]], and not on the operation of the [[product with digital elements]]. If [[manufacturer|manufacturers]] design and develop solutions, which are then operated by a [[third party]], they remain responsible for compliance with the CRA's essential requirements for the [[product with digital elements]] that they [[placing on the market|place on the market]].

197. It is necessary to differentiate between the cases where design and development are done by [[manufacturer|manufacturers]] (or under their responsibility) and cases of reliance on third- party solutions not designed and developed by [[manufacturer|manufacturers]] (or under their responsibility). As an example, it is helpful to consider the most common cloud service models that provide different degrees of [[user]] control and that are also cited in recital 12 of the CRA, namely [[software|Software]] as a Service (SaaS), Platform as a Service (PaaS) and Infrastructure as a Service (IaaS).

198. In the case of a third-party IaaS solution, the [[manufacturer]] does not manage or control the underlying physical and virtual resources (such as the underlying [[hardware]] and the cloud service [[provider]]'s hypervisor), but is able to deploy and run arbitrary [[software]] using such resources, such as operating systems and applications. Such [[software]] is designed and developed by the [[manufacturer]], or under its responsibility, and may therefore qualify as RDPS (if it fulfils the other elements of the definition).

199. In the case of a third-party PaaS solution, the [[manufacturer]] deploys its own (created or acquired) application using programming languages and execution environments provided by the cloud service [[provider]] and integrates the application into its [[product with digital elements]]. The [[manufacturer]] has control over the application and possibly over configuration settings for the execution environment. The application is therefore designed and developed by the [[manufacturer]], or under its responsibility, and may therefore qualify as RDPS (if it fulfils the other elements of the definition).

200. In the case of a third-party SaaS solution, the SaaS [[provider]] offers the [[manufacturer]] a fully developed application to be integrated into the [[manufacturer]]'s [[product with digital elements]]. The [[manufacturer]] has limited ability to manage [[user]]-specific application configuration settings. The application is therefore not designed and developed by the [[manufacturer]], or under its responsibility.

201. Nonetheless, where certain elements do not qualify as RDPS (e.g. the hypervisor in the case of a third-party IaaS infrastructure, the operating system in the case of a third-party PaaS solution, or the third-party SaaS application) but are integrated into the [[product with digital elements]] in a manner that affects its security, such solutions should be considered similar to third-party [[component|components]]. The [[manufacturer]] is required to identify and assess [[risk|risks]] linked to the integration of those elements and to address them by implementing the essential requirements on the [[product with digital elements]] itself. This can, where relevant, be supported by the security functions made available by the cloud service [[provider]] through its shared responsibility model, where the [[manufacturer]] uses or configures those functions to address the identified [[risk|risks]]. Additionally, the [[manufacturer]] is expected to exercise a similar obligation to the obligation to perform due diligence referred to in Article 13(5) related to the security of these [[component|components]], in a manner that is proportionate to the [[risk]] that the remote solution poses to the security of the [[product with digital elements]].

202. Therefore, it can be summarised that: a. For [[data]] [[processing]] to qualify as RDPS, the answer to both questions posed in Sections 8.1.2 Would the absence of such [[data]] [[processing]] prevent the [[product with digital elements]] from performing one of its functions? and 8.1.3 Has the [[software]] been designed and developed by the [[manufacturer]], or under its responsibility? needs to be affirmative. b. If the answer to the question in Section 8.1.2 Would the absence of such [[data]] [[processing]] prevent the [[product with digital elements]] from performing one of its functions? is negative, [[manufacturer|manufacturers]] should assess the [[risk|risks]] stemming from the existence of such [[data]] [[processing]] as part of their [[risk]] assessment. c. If the answer to the question in Section 8.1.2 Would the absence of such [[data]] [[processing]] prevent the [[product with digital elements]] from performing one of its functions? is affirmative but the answer to the question in 8.1.3 Has the [[software]] been designed and developed by the [[manufacturer]], or under its responsibility? is negative, [[manufacturer|manufacturers]] should treat the third-party solution as a [[component]]. As part of the [[risk]] assessment, [[manufacturer|manufacturers]] should assess the [[risk|risks]] stemming from the integration of such solution and mitigate them accordingly. Additionally, [[manufacturer|manufacturers]] should exercise due diligence.

> [!figure] Figure 9: Stylised flowchart to determine if a [[product with digital elements]] contains RDPS
> 
>
> **Flowchart description:**
>
> 1. **Start**
> 2. **Question: "Is any part of the product's [[data]] [[processing]] happening at a distance?"**
>    - **No** -> "Not CRA RDPS" -> Note: "Any relevant [[risk|risks]] still to be included in [[risk]] assessment"
>    - **Yes** -> proceed to step 3
> 3. **Question: "Is such [[remote data processing]] necessary for a function of the product?"**
>    - **No** -> "Treat as external dependency" -> Note: "[[risk|Risks]] stemming from this dependency must be included in the [[risk]] assessment and mitigated through product-level controls"
>    - **Yes** -> proceed to step 4
> 4. **Question: "Is such [[remote data processing]] developed under your responsibility?"**
>    - **No** -> "Treat as [[component]]" -> Note: "[[risk|Risks]] stemming from integration of this [[component]] must be included in the [[risk]] assessment and mitigated through product-level controls; due diligence should also be carried out to support [[risk]] mitigation"
>    - **Yes** -> proceed to step 5
> 5. **Result: "CRA RDPS"** -> Note: "Include in the [[cybersecurity]] [[risk]] assessment and ensure implementation of the essential [[cybersecurity]] requirements for the product as a whole"

### 8.2 Practical and technical implications of remote data processing solutions and reliance on third-party solutions

203. The CRA follows a [[risk]]-based approach, which is enshrined in Article 13(2) and (3), as well as in the first essential requirement of Part I of Annex I, whereby '[[product with digital elements|products with digital elements]] shall be designed, developed and produced in such a way that they ensure an appropriate level of [[cybersecurity]] based on the [[risk|risks]]'. Consequently, a [[risk]]-based approach should be considered when applying the CRA requirements to the RDPS and the treatment of [[risk|risks]] stemming from third-party services integrated into the [[product with digital elements]].

204. First, [[manufacturer|manufacturers]] should (i) indicate in the technical documentation that their [[product with digital elements]] has RDPS or relies on third-party remote solutions and (ii) describe such solutions. If the same RDPS supports several [[product with digital elements|products with digital elements]], the RDPS needs to be declared in each product's technical documentation. The documentation concerning RDPS serving several [[product with digital elements|products with digital elements]] may be re-used from one product [[conformity assessment]] to another.

205. As indicated in recital 11, the RDPS that are part of the [[product with digital elements]] and therefore [[subject]] to the product's [[conformity assessment]] should be limited to those [[software]] modules that are responsible for the functionality of the [[product with digital elements]], and to the interfaces those modules use with external services. Further back-end systems that carry out subsequent [[processing]], and with which the [[product with digital elements]] does not directly interact, are not considered RDPS.

206. Nonetheless, those back-end systems remain external dependencies that must be assessed as part of the [[cybersecurity]] [[risk]] assessment and mitigated through product-level measures. In fact, the [[risk]] assessment performed by the [[manufacturer]] should consider: (i) [[risk|risks]] related to RDPS; (ii) [[risk|risks]] related to reliance on third-party remote solutions (similar to third-party [[component|components]]); and (iii) [[risk|risks]] related to the product environment (e.g. underlying [[hardware]]). [[manufacturer|Manufacturers]] should implement security controls on the [[product with digital elements]] itself to mitigate those [[risk|risks]].

207. Furthermore, as part of the [[conformity assessment]] and/or the fulfilment of due diligence obligations related to third-party remote services, the following non- exhaustive list of assurance artefacts can be re-used in support of the [[manufacturer]]'s assessment: a. evidence of fulfilment of obligations under Commission Implementing Regulation (EU) 2024/2690; b. evidence of fulfilment of obligations under Regulation (EU) 2022/2554 (DORA); c. statement of conformity or certificate obtained under a European [[cybersecurity]] certification scheme (adopted under Regulation (EU) 2019/881 -- the [[cybersecurity|Cybersecurity]] Act); d. evidence of conformity with ISO/IEC 27017:2015 or ISO/IEC 27001:2022.

208. Finally, in their interactions with third-party remote service [[provider|providers]], [[manufacturer|manufacturers]] need to implement the most appropriate security measures based on their [[risk]] assessment (and, where appropriate, supported by the [[provider]]'s shared responsibility model). Those mitigation measures should include security controls for their [[product with digital elements|products with digital elements]] and the verification of security measures provided by the third-party [[provider|providers]] themselves (due diligence). A tool to mitigate such [[risk|risks]] can be to embed security guarantees in their service level agreements (SLAs) with third-party [[provider|providers]], including assurances that [[provider|providers]] adequately handle vulnerabilities. A major change in the solutions provided by the third-party remote services [[provider|providers]] should not qualify as a [[substantial modification]] of the [[product with digital elements]], as these elements are not under the [[manufacturer]]'s responsibility. However, as part of their due diligence obligations and to correctly mitigate [[risk|risks]] stemming from the use of third-party [[provider|providers]], [[manufacturer|manufacturers]] are encouraged to ensure that their third-party cloud service [[provider|providers]] keep them adequately informed about changes they implement on their solutions. Based on such information, [[manufacturer|manufacturers]] may need to revise their [[risk]] assessment. The updated [[risk]] assessment should consider whether the third-party service [[provider|providers]] still provide sufficient guarantees in terms of [[cybersecurity]] and whether the product- level security controls are still adequate. In some cases, [[manufacturer|manufacturers]] may need to modify such controls or change third-party service [[provider|providers]].

### 8.3 Use cases for remote data processing solutions

In order to provide additional practical guidance for [[manufacturer|manufacturers]], this section introduces a series of fictional use cases, describing archetypal [[product with digital elements|products with digital elements]] that rely on [[remote data processing]] and illustrating whether such [[processing]] qualifies as [[remote data processing]] solutions within the meaning of the CRA.

#### 8.3.1 Mobile banking application

A financial entity places a mobile banking application on the market. The app's back-end systems support, among others, authentication, authorisation, account management, and payments. The financial entity uses a hybrid strategy relying on in-house infrastructure as well as third-party remote solutions to support the app's functionalities. These include:

**Self-hosted infrastructure developed by the financial entity:**

- The [[customer]] opens the mobile banking application and is authenticated through the banking interface, a self-hosted solution developed by the financial entity that receives the app's requests and returns the corresponding responses. The banking interface verifies the [[customer]]'s identity by querying the account management system and grants access to the application. - The [[customer]] initiates a transfer via the app. The app transmits the instruction to the banking interface, which submits a corresponding request to the [[Ledger|ledger]] system. - The account-management system and [[Ledger|ledger]] system, both self-hosted but logically segregated from the banking interface, record the transaction. - The [[Ledger|ledger]] system returns the transaction status to the banking interface, which presents the result to the [[customer]].

**Implications for RDPS:**

- The banking interface is necessary for the app to perform its functions, namely authenticating the [[customer]], submitting the [[customer]]'s instructions, including payment and transfer instructions, and returning the resulting status. The banking interface is designed and developed under the responsibility of the [[manufacturer]]. As the answer to both questions presented in earlier sections is affirmative, the banking interface is to be considered an RDPS. It must therefore be included in the [[cybersecurity]] [[risk]] assessment and in the implementation of the essential requirements for the [[product with digital elements]] as a whole. The subsequent [[processing]] of an instruction once submitted, in particular the recording of the transaction in the account-management and [[Ledger|ledger]] systems, settlement and clearing, is carried out by systems with which the app does not interact directly and does not, on that basis, constitute an RDPS. - The account-management system and the [[Ledger|ledger]] system do not qualify as RDPS for the banking application. The app does not interact directly with them (interacting instead with the banking interface, which in turn relies upon them). Although their availability may be necessary for a function to be completed, the CRA covers only those parts of the system that interact directly with the [[product with digital elements]]. They therefore fall outside the definition of RDPS for the purposes of the CRA. However, those systems remain external dependencies that may give rise to significant [[cybersecurity]] [[risk|risks]] for the [[product with digital elements]]. For example, compromise of the [[Ledger|ledger]] system could allow an attacker to influence transaction results that are subsequently displayed in the application. The [[manufacturer]] is therefore required to identify and assess those [[risk|risks]] as part of the [[cybersecurity]] [[risk]] assessment and to mitigate them through product-level measures, such as strong authentication of back-end interfaces, integrity protection of transaction [[data]], secure communication channels and verification of responses received by the app.

> [!figure] Figure 10: Stylised representation of a banking app relying on RDPS
> 
>
> **Diagram description:** A system architecture diagram showing a mobile banking app and its interactions with back-end systems. On the left side: "The product: a banking app" containing the app itself (installed on the device) and the RDPS [[component]] (the banking interface, which authenticates the [[customer]] and initiates the payment). The banking interface sends requests to the bank's environment (right side) via labelled [[data]] flows: "Authenticate, check balance, initiate transfer" (outgoing) and "Transfer executed and send updated balance" (returning). The bank's environment contains "Account management and [[Ledger|ledger]]" systems that record the transaction and send back output. A separate box on the far right indicates "The [[data]] centre where services are hosted". At the bottom, two boxes summarise the [[manufacturer]]'s obligations: "Mitigations on your product" (example: strong authentication of input, verification of responses, graceful degradation) and "[[risk|Risks]] for the product" (example: if bank's environment fails or is compromised).
>
> **Key takeaway:** The banking interface qualifies as RDPS because it is necessary for the app's functions and is designed and developed under the [[manufacturer]]'s responsibility. The account-management and [[Ledger|ledger]] systems do not qualify as RDPS (the app does not interact with them directly), but remain external dependencies whose [[risk|risks]] must be assessed and mitigated through product-level controls.

*Third-party SaaS for [[customer]] support:*

- The financial entity integrates into its app a [[customer]] support chat solution developed and operated by a third-party [[provider]]; the third-party [[provider]] has written the chat server code, built the [[user]] interface and operates the infrastructure where the chat is deployed (i.e. SaaS model). - When the [[customer]] initiates a request for support, the app connects the [[customer]] to the third-party service to establish a chat session and handle the messaging flow, without providing the [[third party]] with access to core banking systems.

**Implications for RDPS:**

- The support chat solution is necessary for the [[product with digital elements]] to perform one of its functions, but is not designed and developed by the financial entity, or under its responsibility; it therefore is not an RDPS. However, it should be treated like a third-party [[component]]. The reliance on that third-party service may create [[cybersecurity]] [[risk|risks]] for the banking application, for example if an attacker were to use the chat channel to impersonate the bank or to deliver malicious content to [[user|users]]. The financial entity must take those [[risk|risks]] into account in its [[cybersecurity]] [[risk]] assessment and mitigate them through product-level measures, such as isolating the chat function from core banking features, controlling [[data]] flows and [[Mining|validating]] content. Due diligence on the SaaS should also be exercised.

#### 8.3.2 Smart thermostat

A smart thermostat enables [[user|users]] to control the temperature of their homes via a mobile application. The mobile application and the smart thermostat rely on [[remote data processing]] to exchange [[data]] (e.g. request to increase the temperature) and store [[data]] (e.g. [[user]] preferences). These functions were developed and designed under the responsibility of the [[manufacturer]] but run on an underlying physical and virtual infrastructure provided by a [[third party]] (third-party IaaS).

As the smart thermostat would not be able to perform its smart functionalities without this [[remote data processing]], its absence would prevent the [[product with digital elements]] from performing one or more of its functions. Additionally, the [[software]] was developed and designed under the responsibility of the smart thermostat [[manufacturer]]. Therefore, the [[remote data processing]] qualifies as RDPS as defined in the CRA.

For the purpose of CRA compliance, the [[manufacturer]] of the smart thermostat needs to document the RDPS as well as the reliance on the third-party IaaS in the technical documentation of the [[product with digital elements]], including details of the contracted service. The [[manufacturer]] needs to consider those elements in the [[risk]] assessment, which includes the [[intended purpose]] and [[reasonably foreseeable use]] of the [[product with digital elements]]. The [[manufacturer]] implements the CRA's essential requirements based on the [[risk|risks]] on the RDPS. For the third-party IaaS, the [[manufacturer]] needs to ensure that the security measures provided by the third-party [[provider]] are appropriate and/or take relevant measures vis-a-vis the infrastructure. For the former, the [[manufacturer]] could, for example, ask for evidence that NIS 2 obligations have been met.

#### 8.3.3 e-Reader

The [[manufacturer]] of an e-Reader [[software]] uses a third-party SaaS storage service to store electronic books purchased by [[customer|customers]] and enable them to access their books. The absence of this storage service would prevent the [[product with digital elements]] from performing one of its functions, but the third-party SaaS storage service is not developed by or under the responsibility of the [[manufacturer]]; the SaaS [[provider]] makes it available to [[customer|customers]] for any use case.

The SaaS storage service does not meet the definition of RDPS. However, the e-Reader [[manufacturer]] relies on that external service for the functioning of its [[product with digital elements]] and must therefore take the associated [[risk|risks]] into account in its [[cybersecurity]] [[risk]] assessment. The e-Reader [[manufacturer]] should treat the SaaS like a [[component]]. The [[manufacturer]] must implement appropriate product-level security measures, such as secure authentication, encryption and integrity protection of communications with the storage service. Due diligence when selecting and integrating the SaaS [[provider]] will also support the [[manufacturer]]'s obligations, so that the [[product with digital elements]] as a whole can comply with the essential requirements.

#### 8.3.4 Industrial robot

An industrial robot has the task of picking up parts. The robot sends information collected via cameras to a remote service designed and developed by the [[manufacturer]]. This service runs on an underlying physical and virtual infrastructure provided by a third-party service [[provider]] (third- party IaaS). The cloud service calculates the position of a part based on the camera feeds and sends commands back to the robot to pick up the parts.

The absence of this [[data]] [[processing]] would prevent the industrial robot from picking up parts, hence from performing one of its functions. Furthermore, the [[software]] running on top of the infrastructure has been designed and developed by the [[manufacturer]]. The [[software]] designed and developed by the [[manufacturer]] meets the definition of RDPS.

The [[manufacturer]] of the industrial robot needs to document the RDPS as well as the reliance on the third-party IaaS in the technical documentation of the [[product with digital elements]] (including details of the contracted service). The [[manufacturer]] also needs to consider those elements in the [[risk]] assessment, which includes the [[intended purpose]] and [[reasonably foreseeable use]] of the [[product with digital elements]]. The [[manufacturer]] implements the CRA's essential requirements on the [[product with digital elements]], including its RDPS, on the basis of the [[risk|risks]]. Due diligence when selecting the IaaS [[provider]] will also support the [[manufacturer]]'s obligations. For example, the [[manufacturer]] could ask for evidence that NIS 2 obligations have been met.

#### 8.3.5 Cellular network

A smartphone relies on a 5G network to provide internet connection, phone calls and messages to its [[user|users]] (mobile connectivity). The cellular network is developed and designed by telecommunication [[operator|operators]]. The network comprises small cells and cell towers, and other network equipment.

The [[product with digital elements]] should be able to connect to a network correctly; this is one of its functions. However, whether that network is in operation or not is not relevant to ascertain if the [[product with digital elements]] is working correctly. The network is only a communication channel and is not necessary for the [[product with digital elements]] to perform its function of 'connecting to a network correctly'. Likewise, an ethernet cable, a router or Wi-Fi signal is not considered [[data]] [[processing]] whose absence would prevent the [[product with digital elements]] from performing one of its functions, but rather an enabler of communication/connectivity.

Consequently, the cellular network does not meet the definition of RDPS. The network should not be considered like a third-party [[component]], as there is no [[software]] integrated into the [[product with digital elements]], the product instead merely relying on this network. As such, it is not necessary for the [[manufacturer]] to exercise due diligence obligations towards the network [[provider]].

## 9 Additional elements

### 9.1 Reporting obligations

209. Under Article 14(1) and (3) of the CRA, a [[manufacturer]] is required to notify simultaneously to the CSIRT designated as coordinator and to ENISA of (i) any [[actively exploited vulnerability]] contained in its [[product with digital elements]] that it becomes aware of; and (ii) any severe [[incident having an impact on the security of the product with digital elements]] that it becomes aware of.

210. In accordance with Article 69(3) and 71(2), second sentence, the obligation to comply with Article 14 applies from 11 September 2026 to all [[product with digital elements|products with digital elements]] that fall within the scope of the CRA, including [[product with digital elements|products with digital elements]] [[placing on the market|placed on the market]] before 11 December 2027. Furthermore, unlike the vulnerability handling obligations, which continue only for the length of a product's [[support period]], the reporting obligations continue to apply after a [[product with digital elements]] is no longer supported. Where a [[product with digital elements]] was [[placing on the market|placed on the market]] before 11 December 2027, or where its [[support period]] has ended, the [[manufacturer]] is not required to comply with the vulnerability handling obligations set out in Part II of Annex I.

211. It should be [[recall of an AI system|recalled]] that the obligation to notify such events applies once the [[manufacturer]] becomes aware that a vulnerability is being actively exploited or that a severe incident has occurred and has led to the security of its [[product with digital elements]] being compromised. Therefore, guidance on when a [[manufacturer]] is deemed to have become aware should help [[manufacturer|manufacturers]] determine the moment when the applicable reporting deadlines start.

212. [[manufacturer|Manufacturers]] may be [[subject]] to comparable reporting obligations under different EU acts. To ensure the concept of 'becoming aware' is interpreted consistently and to facilitate [[manufacturer|manufacturers]]' compliance with those obligations, this guidance is aligned with recital 31 of Commission Implementing Regulation (EU) 2024/2690 and Section II(A) of the Guidelines 9/2022 on [[personal data breach]] notification under the GDPR.

213. In some cases, a [[manufacturer]] will detect a suspicious event, or a [[third party]], such as an individual, a [[customer]], an entity, an authority, a media organisation or other source will bring a potential incident or vulnerability to its attention. In such cases, the [[manufacturer]] should assess the suspicious event immediately to determine whether it constitutes an [[actively exploited vulnerability]] or a severe [[incident having an impact on the security of the product with digital elements]]. The [[manufacturer]] is therefore to be regarded as having become aware when, after such an initial assessment, it has a reasonable degree of certainty that: (i) a vulnerability contained in its [[product with digital elements]] is being actively exploited; or (ii) a severe incident has occurred and has led to the security of its [[product with digital elements]] being compromised.

214. Therefore, the point in time at which a [[manufacturer]] can be considered to be aware will depend on the circumstances of the specific [[actively exploited vulnerability]] or severe incident. In some cases, it will be relatively clear from the outset that a vulnerability is being actively exploited or that a severe incident is impacting the security of a [[product with digital elements]]. In others, it may take some time to establish whether a [[product with digital elements]] is affected by a vulnerability and whether that vulnerability is being exploited by a malicious actor, or whether an incident is impacting the security of a [[product with digital elements]]. However, the emphasis should be on prompt action to carry out the initial assessment to determine whether such conditions are indeed met, particularly where the vulnerability may pose a significant [[risk]], and if so, to take remedial action and notify in accordance with the CRA.

215. Furthermore, the structure of the reporting obligations requires [[manufacturer|manufacturers]] to update their notifications progressively, as their internal investigations advance and their knowledge of the [[actively exploited vulnerability]] or incident becomes more detailed. In particular, [[manufacturer|manufacturers]] are required to submit an early warning notification containing limited information without undue delay and in any event within 24 hours of becoming aware. Additional information is subsequently required as part of the notification to be submitted without undue delay and in any event within 72 hours of becoming aware ('72-hour notification'). The complete report needs to be submitted within 14 days after a corrective or mitigating measure is available for [[actively exploited vulnerability|actively exploited vulnerabilities]], or within one month after the 72-hour notification for severe incidents.

216. As also [[recall of an AI system|recalled]] in Section 3.3.1 Sustained support and ensuring viability of FOSS, [[open-source software steward|open-source software stewards]] are also required to report [[actively exploited vulnerability|actively exploited vulnerabilities]] in accordance with Article 24(3)[^30]. That obligation applies upon becoming aware of an [[actively exploited vulnerability]], and not merely where a vulnerability exists in the codebase of a FOSS for which that entity is a steward. In practice, because FOSS [[component|components]] are typically integrated downstream into other [[product with digital elements|products with digital elements]], a steward is likely to become aware of active exploitation via reports from [[third party|third parties]], which identify exploitation in FOSS [[component|components]] as integrated into other [[product with digital elements|products with digital elements]]. This may be the case, for example, where a [[manufacturer]] of a [[product with digital elements]] detects active exploitation in a FOSS [[component]] integrated into its own product and reports it to that [[component]]'s steward; or when a [[user]] or a security researcher finds evidence of exploitation of a FOSS [[component]] integrated in a [[product with digital elements]] and reports that active exploitation to the [[component]]'s steward.

217. It should also be clarified that, because the obligation to report [[actively exploited vulnerability|actively exploited vulnerabilities]] applies when the [[manufacturer]] becomes aware of active exploitation, the [[manufacturer]] is not required to report vulnerabilities of whose active exploitation it had already become aware before 11 September 2026 (the date on which the reporting obligation starts to apply). The CRA, therefore, does not require the retroactive reporting of such vulnerabilities. By contrast, the obligation does apply where the [[manufacturer]] was aware of a vulnerability before 11 September 2026 but was not, at that time, aware of any active exploitation of it (either because none had yet occurred or because the [[manufacturer]] had not become aware of it). If, after 11 September 2026, active exploitation subsequently occurs or the [[manufacturer]] becomes aware of it, the vulnerability is deemed an actively exploited one [[subject]] to the reporting obligation.

218. Similarly, a [[manufacturer]] is only required to report [[actively exploited vulnerability|actively exploited vulnerabilities]] contained in their [[product with digital elements]]. Where a [[product with digital elements]] contains an [[actively exploited vulnerability]] originating from a third-party [[component]], the [[manufacturer]] of the [[product with digital elements]] is required to notify that [[actively exploited vulnerability]]. However, if a [[manufacturer]] is aware that a third-party [[component]] contains a vulnerability, but that vulnerability either (i) cannot be exploited in its [[product with digital elements]] (e.g. because the vulnerable code is not reachable) or (ii) has not been exploited in its [[product with digital elements]], that vulnerability does not qualify as an [[actively exploited vulnerability]] contained in its [[product with digital elements]], and therefore it is not [[subject]] to mandatory reporting for that [[manufacturer]]. That [[manufacturer]] can still notify that vulnerability on a voluntary basis, in accordance with Article 15 of the CRA. It is also required to comply with the vulnerability handling requirements of Part II of Annex I to the CRA, as well as to report the vulnerability to the person or entity manufacturing or maintaining the [[component]], in accordance with Article 13(6), and as further explained in Section 9.2.1 Reporting upstream and sharing security fixes.

219. After becoming aware of an [[actively exploited vulnerability]] or a severe incident, [[manufacturer|manufacturers]] are also required, in accordance with Article 14(8), to inform impacted [[user|users]] and, where appropriate, all [[user|users]]. Where they fail to do so in a timely manner, the CSIRTs that received the notification may provide such information to [[user|users]] when this is considered proportionate and necessary to prevent or mitigate the impact of that vulnerability or incident.

220. In line with the CRA's [[risk]]-based approach, the obligation to inform [[user|users]] laid down in Article 14(8) is to be applied in a [[risk]]-based and proportionate manner. In particular, the provision of information about an [[actively exploited vulnerability]] or a severe incident does not imply that such information must be made public or disclosed indiscriminately. Where appropriate, and in light of the nature of the [[product with digital elements]], the affected [[user|users]] and the vulnerability or incident's potential impact, [[manufacturer|manufacturers]] may limit the disclosure of detailed information to the relevant [[user|users]] or [[customer|customers]] concerned. This is particularly the case for [[product with digital elements|products with digital elements]] used in sensitive or essential environments, where public disclosure of technical details could itself increase [[cybersecurity]] [[risk|risks]] or facilitate further exploitation.

221. Once the vulnerability has been adequately addressed or mitigated, broader disclosure may be appropriate. This would be the case, for example, where disclosure contributes to raising general awareness or enables [[user|users]] to verify that their [[product with digital elements|products with digital elements]] are no longer affected. In such cases, the level of detail and the timing of any broader disclosure should remain proportionate and take into account the residual [[risk|risks]] of exploitation, the nature of the [[product with digital elements]] and the interests of the [[user|users]] concerned. Furthermore, point (4) of Part II of Annex I requires [[manufacturer|manufacturers]] to publicly disclose information about fixed vulnerabilities once a security update has been made available.

### 9.2 Vulnerability handling

#### 9.2.1 Reporting upstream and sharing security fixes

222. Article 13(6) of the CRA requires [[manufacturer|manufacturers]] to report vulnerabilities in integrated [[component|components]] to the person or entity manufacturing or maintaining that [[component]] ('reporting upstream').

223. [[manufacturer|Manufacturers]] are required to report upstream only in respect of the version of the [[component]] that they integrate. Where the person or entity manufacturing or maintaining the [[component]] has established security policies, coordinated vulnerability disclosure processes or designated channels for reporting vulnerabilities, [[manufacturer|manufacturers]] should report in accordance with them, particularly where premature disclosure of unpatched vulnerabilities could increase [[cybersecurity]] [[risk|risks]]. Furthermore, in order to reduce the burden on upstream maintainers, particularly in open-source projects, [[manufacturer|manufacturers]] are not required to report upstream where they can confirm that the person or entity manufacturing or maintaining a [[component]] is aware of the existence of a vulnerability. [[manufacturer|Manufacturers]] are encouraged to take reasonable steps to avoid the submission of duplicate reports, for example by checking publicly accessible vulnerability databases, project-specific security advisories, or established issue trackers before reporting upstream.

224. [[manufacturer|Manufacturers]] are required to report upstream only those vulnerabilities that exist in the integrated [[component]] itself, and not vulnerabilities that exist as a result of the integration between the [[component]] and other code developed by the [[manufacturer]] or by the integration of other [[component|components]]. Nonetheless, there may be situations in which a [[component]]'s integration into a specific [[product with digital elements]] reveals certain behaviours, interactions or security-relevant characteristics of that [[component]] that were not apparent, or not readily identifiable, in isolation. In such cases, [[manufacturer|manufacturers]] are encouraged to communicate this information to the person or entity manufacturing or maintaining the [[component]], in order to foster good vulnerability-handling practices aimed at facilitating effective remediation and improving the overall security of the [[component]] ecosystem.

225. Finally, [[manufacturer|manufacturers]] are also not required to report the vulnerability upstream where the [[component]] no longer has a maintainer, or when the [[manufacturer]] no longer relies on the original maintainer for new versions or security fixes. In such cases, the [[manufacturer]] is nonetheless encouraged to inform [[user|users]] of that [[component]] via reasonable alternative measures, e.g. through existing community mechanisms (such as mailing lists or issue tickets) or through public vulnerability records.

226. Furthermore, under Article 13(6) [[manufacturer|manufacturers]] that have developed a [[software]] modification to address a vulnerability in an integrated [[component]] are required to share that [[software]] modification ('security fix') with the person or entity manufacturing or maintaining the [[component]] ('sharing upstream').

227. Where [[manufacturer|manufacturers]] are required to share a security fix under Article 13(6), the fix should, where appropriate, be provided in a machine-readable format, in a manner that can be easily verified and, where appropriate, integrated by the person or entity manufacturing or maintaining the [[component]]. Where the [[component]] is a free and open-source [[component]], the security fix should be shared in a manner compatible with that [[component]]'s licence, for example by sharing it under the same licence or under a licence that allows the maintainer to distribute the fix under its own licence. Where the maintainer of that [[component]] has guidelines on how security fixes should be shared, the [[manufacturer]] should follow those guidelines.

228. However, [[manufacturer|manufacturers]] are not required by the CRA to ensure that their security fixes are necessarily accepted by the person or entity manufacturing or maintaining the [[component]]. Nor are they required to ensure that those fixes are necessarily integrated into the [[component]]'s code repository, for instance where the maintainer may prefer a different option to fix the issue. Similarly, [[manufacturer|manufacturers]] are not required to accept a proposed fix developed by the [[component]] maintainer, and may prefer to mitigate the issue in other suitable ways.

229. In some cases, the person or entity manufacturing or maintaining the [[component]] may have already provided a security fix to address the vulnerability, but a [[manufacturer]] implements a different mitigation strategy (for example by changing a different configuration). In such cases, the CRA does not require the [[manufacturer]] to share the modification of another part of the system upstream. The [[manufacturer]] is nonetheless encouraged to do so where this can support the person or entity maintaining the [[component]].

#### 9.2.2 Known exploitable vulnerabilities

230. One of the essential requirements of Part I of Annex I to the CRA provides that, on the basis of the [[cybersecurity]] [[risk]] assessment referred to in Article 13(2), and where applicable, [[product with digital elements|products with digital elements]] must be [[making available on the market|made available on the market]] without known [[exploitable vulnerability|exploitable vulnerabilities]].

231. Article 3(41) defines '[[exploitable vulnerability]]' as 'a vulnerability that has the potential to be effectively used by an adversary under practical operational conditions'. Not all vulnerabilities are exploitable under practical operational conditions, and some vulnerabilities can only be exploited in theoretical conditions (e.g. in a lab or in a simulation) and/or not under conditions which would occur in the operational environment of a [[product with digital elements]].

232. The CRA requires [[manufacturer|manufacturers]] to have appropriate policies and procedures to handle and remediate potential vulnerabilities reported from internal or external sources (Article 13(8)). However, it does not explicitly specify when an [[exploitable vulnerability]] should be considered to be known by the [[manufacturer]], thereby triggering the obligation to comply with this essential requirement at the moment of placement on the market.

233. A vulnerability should be regarded as known when it is listed in relevant publicly accessible vulnerability databases, such as the European vulnerability database established by Article 12(2) of Directive (EU) 2022/2555 or other prominent vulnerability databases.

234. Additionally, a vulnerability may also be known when the [[manufacturer]] has been made aware of it via non-public information, for example via coordinated disclosure by a security researcher or through the [[manufacturer]]'s own internal testing and analysis, including, for example, when making use of AI-powered services. Likewise, a vulnerability may be known when it has been publicly and prominently reported in reliable media outlets, including specialised [[cybersecurity]] publications or general mass media.

235. Nevertheless, the mere fact that a vulnerability is reported or found does not, in itself, mean that it is exploitable in practice or applicable to the specific [[product with digital elements]] concerned. The [[manufacturer]] will need to investigate it and confirm the veracity of such information and applicability to its own [[product with digital elements]]. Accordingly, a limited period of time may elapse between the first report of the vulnerability and its confirmation. As indicated in Section 9.1 Reporting obligations, the emphasis should be on prompt action to investigate and react.

236. Furthermore, the obligation for [[manufacturer|manufacturers]] to comply with the essential requirements set out in Part I of Annex I applies at the moment of placement on the market, in accordance with Article 13(1). In practice, it may be the case that new potentially [[exploitable vulnerability|exploitable vulnerabilities]] are discovered during the final stages of the development lifecycle of the [[product with digital elements]], including shortly before it enters the distribution chain (and is therefore [[placing on the market|placed on the market]]).

237. As the obligation to place [[product with digital elements|products with digital elements]] on the market without known [[exploitable vulnerability|exploitable vulnerabilities]] is a [[risk]]-based obligation, it falls upon the [[manufacturer]] to determine whether, on the basis of the [[cybersecurity]] [[risk]] assessment, the [[product with digital elements]] can be securely [[placing on the market|placed on the market]], in compliance with the CRA. Alternatively, the [[manufacturer]] may determine that a new vulnerability that may have become known needs to be fixed before the [[product with digital elements]] can be [[placing on the market|placed on the market]]. In making that determination, [[manufacturer|manufacturers]] should take into account the severity, exploitability and potential impact of the vulnerability, as well as the [[risk|risks]] arising for the [[product with digital elements]] itself once in use. They may also take into account the [[risk|risks]] of postponing the product's release until the vulnerability is fixed, for example because the new release also addresses other [[exploitable vulnerability|exploitable vulnerabilities]], or is necessary for the continued operation of critical systems. In any case, once a [[product with digital elements]] is [[placing on the market|placed on the market]], the [[manufacturer]] remains [[subject]] to the obligation to handle vulnerabilities effectively and in accordance with the vulnerability handling requirements set out in Part II of Annex I.

#### 9.2.3 Effective and regular tests and reviews

238. Point (3) of Part II of Annex I requires [[manufacturer|manufacturers]] to apply effective and regular tests and reviews of the [[product with digital elements]] throughout its [[support period]]. Applying regular tests does not require the mechanical repetition, at fixed intervals, of an unchanged test campaign. It means regularly reviewing whether new input, such as newly identified threats or newly discovered vulnerabilities, requires the existing tests to be updated, and executing tests accordingly.

239. The frequency, depth and content of the review should be proportionate to the [[cybersecurity]] [[risk]] profile of the [[product with digital elements]], its evolution over time, and the state of the threat landscape. Where the review identifies relevant new input affecting the test set, new or modified tests should be devised and executed on the product, to ensure that no vulnerabilities remain unaddressed. This may include re- executing existing tests where a modification to the [[product with digital elements]] makes such types of testing appropriate, such as regression testing.

240. Where the review identifies no such input, additional tests need not be devised. Other vulnerability handling obligations, including that of addressing and remediating vulnerabilities in relation to the [[risk|risks]] posed, continue to apply in parallel.

### 9.3 Interplay with other legislation

#### 9.3.1 Regulation (EU) 2019/2144 and Regulation (EU) No 168/2013

241. Point (c) of Article 2(2) of the CRA establishes that the Regulation does not apply to [[product with digital elements|products with digital elements]] to which Regulation (EU) 2019/2144 applies. Regulation (EU) 2019/2144 applies to 'vehicles of categories M, N and O, as defined in Article 4 of Regulation (EU) 2018/858, and to systems, [[component|components]] and separate technical units designed and constructed for such vehicles'.

242. Similarly, [[product with digital elements|products with digital elements]] falling within the scope of Regulation (EU) No 168/2013 have been excluded from the scope of the CRA by Commission Delegated Regulation (EU) 2025/1535. Regulation (EU) 168/2013 applies to L- category vehicles and 'to systems, [[component|components]] and separate technical units, as well as parts and equipment, designed and constructed for such vehicles' (Article 2(1)).

243. Vehicles to which those Regulations apply are not [[subject]] to the CRA. Furthermore, additional clarifications are necessary as regards the scope of the exemption for systems, [[component|components]], separate technical units, parts and equipment (for the sake of this section, '[[component|components]]') designed and constructed for such vehicles that are deemed to be [[product with digital elements|products with digital elements]] within the meaning of the CRA.

244. It is considered that such [[component|components]] are not [[subject]] to the CRA, provided that they are exclusively designed and constructed for integration into vehicles covered by Regulations (EU) 2019/2144 and No 168/2013. This is the case regardless of whether the [[manufacturer]] of that [[component]] sells it directly to the vehicle [[manufacturer]] or to another [[economic operator]] in the automotive supply chain, as long as the [[component]] is clearly intended and suitable only for ultimate integration within those vehicles.

245. By contrast, a [[manufacturer]] that sells generic [[component|components]] that are [[product with digital elements|products with digital elements]] that can be integrated into different types of products, and not exclusively into vehicles covered by those Regulations, is [[subject]] to the CRA.

246. The assessment of whether a [[component]] is [[placing on the market|placed on the market]] within the meaning of the CRA must be based on the objective conditions under which it is made available. Where a [[manufacturer]] offers a [[component]] that is not exclusively suitable for ultimate integration within those vehicles through distribution channels that are open to [[customer|customers]] outside the automotive supply chain, such as general retail outlets or online sales channels accepting orders from the general public, that [[component]] falls within the scope of the CRA, irrespective of any statements concerning its intended use. In such circumstances, the [[component]] cannot be considered as being designed and constructed exclusively for integration into vehicles covered by Regulations (EU) 2019/2144 and No 168/2013, and the [[manufacturer]] is required to comply with the CRA. By contrast, the use of restricted, business-to-business distribution channels limited to the automotive supply chain may indicate that it is designed and constructed exclusively for such integration.

#### 9.3.2 Validity of EU type-examination certificates (Article 69(1))

247. Article 69(1) of the CRA states that 'EU type-examination certificates and approval decisions issued regarding [[cybersecurity]] requirements for [[product with digital elements|products with digital elements]] that are [[subject]] to Union harmonisation legislation other than this Regulation shall remain valid until 11 June 2028, unless they expire before that date, or unless otherwise specified in such other Union harmonisation legislation, in which case they shall remain valid as referred to in that legislation'.

248. The continued validity of such certificates and approval decisions should be understood as being limited to the [[cybersecurity]] [[risk|risks]] and corresponding requirements that are covered by the respective Union harmonisation legislation on the basis of which they were issued. For those [[risk|risks]], [[manufacturer|manufacturers]] are not required to reassess or re-demonstrate compliance solely for the purposes of the CRA during the period of validity referred to in Article 69(1) for [[product with digital elements|products with digital elements]] they intend to [[placing on the market|place on the market]] on or after 11 December 2027 and until 11 June 2028[^31]. This is the case for certificates and approval decisions issued where the applicable Union harmonisation legislation requires the [[manufacturer]] to perform the [[conformity assessment]] procedure via a [[notified body]], as well as where the [[manufacturer]] has voluntarily chosen to do so.

249. Accordingly, the existence of a valid certificate or approval decision under other Union harmonisation legislation does not exempt [[manufacturer|manufacturers]] from carrying out a comprehensive [[cybersecurity]] [[risk]] assessment under the CRA (or from other obligations under it). Instead, it allows them to rely on existing certifications as evidence of compliance for their [[conformity assessment]] procedure, to the extent that the corresponding [[cybersecurity]] [[risk|risks]] are already covered. Where the certificate or approval decision has validity under other Union harmonisation legislation extending beyond 11 June 2028, the [[manufacturer]] may nonetheless rely on such certificate or decision for the purposes of the CRA only until 11 June 2028.

250. Where the [[cybersecurity]] [[risk]] assessment carried out in accordance with Article 13(2) identifies additional [[risk|risks]] not covered by the [[cybersecurity]] requirements underpinning the existing certificate or approval decision, [[manufacturer|manufacturers]] remain responsible for addressing those [[risk|risks]] in accordance with the CRA. In such cases, compliance requires that the identified gaps be assessed and mitigated, irrespective of the continued validity of the existing certificate or approval decision.

251. This can be illustrated by considering the case where a [[product with digital elements]] is [[subject]] to the [[cybersecurity]] requirements laid down in Commission Delegated Regulation (EU) 2022/30 supplementing Directive 2014/53/EU (the Radio Equipment Directive (RED) Delegated Act), and where an EU type-examination certificate or approval decision has been issued on the basis of those requirements. In that case, the certificate or decision remains valid, in accordance with Article 69(1), for the [[cybersecurity]] [[risk|risks]] that are covered by that certificate and related to the [[cybersecurity]] essential requirements of Directive 2014/53/EU (the Radio Equipment Directive, or 'RED').

252. In such cases, [[manufacturer|manufacturers]] are not required, for the purposes of the CRA, to reassess or re-demonstrate compliance in respect of those [[risk|risks]] already addressed by those certificates, for as long as the relevant certificate or approval decision remains valid and, in any event, not beyond 11 June 2028. This includes, for example, [[cybersecurity]] [[risk|risks]] related to network protection, protection of [[personal data]] and privacy or prevention of fraud (to the extent that those [[risk|risks]] are covered by that certificate) related to the RED [[cybersecurity]] requirements and reflected in the [[conformity assessment]].

253. However, where the [[cybersecurity]] [[risk]] assessment carried out in accordance with Article 13(2) of the CRA identifies additional [[cybersecurity]] [[risk|risks]] not covered by those certificates, [[manufacturer|manufacturers]] remain responsible for addressing those [[risk|risks]] in accordance with the CRA. This may include, for example, [[risk|risks]] related to vulnerability handling processes, [[data]] minimisation, and reduction of the attack surface, or other product-specific [[cybersecurity]] aspects not addressed by those certificates or, in any case, not covered by the RED [[cybersecurity]] essential requirements.

254. Accordingly, the existence of a valid EU type-examination certificate or approval decision under the RED for its essential requirements relating to [[cybersecurity]] does not, in itself, demonstrate full compliance with the CRA. Instead, it allows [[manufacturer|manufacturers]] to rely on that certificate or decision as evidence of compliance for the corresponding [[risk|risks]], while ensuring that any remaining or newly identified [[risk|risks]] are assessed and mitigated in accordance with the CRA.

255. Similarly, where a [[product with digital elements]] is [[subject]] to the [[cybersecurity]]- related essential health and safety requirements laid down in Regulation (EU) 2023/1230 (the Machinery Regulation), fully applicable as of 20 January 2027, and where an EU type-examination certificate or approval decision has been issued on the basis of those requirements, that certificate or approval decision remains valid, in accordance with Article 69(1) of the CRA, for the [[cybersecurity]] [[risk|risks]] covered by the Machinery Regulation.

256. In particular, this concerns [[cybersecurity]] aspects related to the protection against corruption and the safety and reliability of control systems, as set out in Sections 1.1.9 and 1.2.1 of Annex III to the Machinery Regulation. For those [[risk|risks]], [[manufacturer|manufacturers]] are not required, for the purposes of the CRA, to reassess or re- demonstrate compliance for as long as the relevant certificate or approval decision remains valid and, in any event, not beyond 11 June 2028. This applies insofar as those [[risk|risks]] have been addressed as part of the [[conformity assessment]] under the Machinery Regulation.

257. As with the RED [[cybersecurity]] essential requirements mentioned above, where the [[cybersecurity]] [[risk]] assessment carried out pursuant to Article 13(2) of the CRA identifies additional [[cybersecurity]] [[risk|risks]] that are not covered by the relevant certificate issued pursuant to the Machinery Regulation and that are related to the cyber-safety requirements of that Regulation, [[manufacturer|manufacturers]] remain responsible for addressing those [[risk|risks]] in accordance with the CRA.

## Notes

[^1]: OJ L, 2024/2847, 20.11.2024, ELI: http://data.europa.eu/eli/reg/2024/2847/oj

[^2]: The Commission's 2026 work programme envisages the presentation of a 'European Product Act', updating the NLF and the rules on market surveillance and on standardisation: https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=CELEX:52025DC0870

[^3]: The FAQs can be downloaded via the Commission's CRA implementation website, from the dedicated FAQs webpage.

[^4]: Expert Group on [[cybersecurity|Cybersecurity]] of [[product with digital elements|products with digital elements]] in the register of Commission expert groups and other similar entities.

[^5]: Public consultation on draft Commission guidance on the Cyber Resilience Act.

[^6]: Commission notice - The 'Blue Guide' on the implementation of EU product rules 2022 (Text with EEA relevance) 2022/C 247/01, OJ C 247, 29.6.2022, pp. 1-152.

[^7]: In accordance with Article 13(11), [[manufacturer|manufacturers]] may maintain public [[software]] archives enhancing [[user]] access to historical versions. In such cases, [[user|users]] shall be informed clearly and in an easily accessible manner about [[risk|risks]] associated with using unsupported [[software]].

[^8]: It should also be [[recall of an AI system|recalled]] that Article 4(3) allows [[manufacturer|manufacturers]] to [[making available on the market|make available on the market]] unfinished [[software]] which does not comply with the Regulation, such as alpha versions, beta versions or release candidates, provided that the unfinished [[software]] is made available only for the time necessary to test it and gather feedback.

[^9]: On the other hand, it should be noted that for the purposes of product liability law, computer code itself does not constitute a product and therefore [[manufacturer|manufacturers]] that place such code on the market cannot be held liable under Directive (EU) 2024/2853 (the Product Liability Directive). Recital 13 of that Directive states that 'information is not, however, to be considered a product, and product liability rules should therefore not apply to the content of digital files, such as media files or e-books or the mere source code of [[software]]'. This does not preclude that [[manufacturer|manufacturers]] may be liable under national tort law.

[^10]: It should be noted that the considerations laid down in this paragraph may be applicable, as appropriate, to all [[product with digital elements|products with digital elements]] in scope of the CRA, and not just 'complex systems'.

[^11]: It should also be [[recall of an AI system|recalled]] that, while often [[product with digital elements|products with digital elements]] are monetised (also) via the [[processing]] of [[personal data]], protection of [[personal data]] is a fundamental right and therefore [[personal data]] cannot be considered as a commodity, as indicated in recital 24 of Directive 2019/770 of the European Parliament and of the Council of 20 May 2019 on certain aspects concerning contracts for the supply of digital   content     and     digital   services,    OJ     L    136,   22.5.2019,     pp.     1-27,    ELI: http://data.europa.eu/eli/dir/2019/770/oj.

[^12]: This is a necessary but not sufficient condition for a legal person to qualify as an [[open-source software steward]], as the definition set out in Article 3(14) lays down additional conditions for a legal person to qualify as steward.

[^13]: This notion is also contained in the formulation 'intended for commercial activities' included in the definition of '[[open-source software steward]]' set out in Article 3(14) of the CRA.

[^14]: The legal person may also not be [[subject]] to any obligations under the CRA, in cases where: (i) a specific FOSS is not [[placing on the market|placed on the market]] within the meaning of the CRA; and (ii) the legal entity does not meet the definition of steward in relation to that specific FOSS.

[^15]: Unless company A is a not-for-profit entity set up in such a way that ensures that all earnings after costs are used to achieve not-for-profit objectives, in which case it would be the steward to that FOSS.

[^16]: In line with Section 2.1 of the Blue Guide, 'it is not necessary to repeat tests and produce new documentation in relation to aspects not impacted by the modification. It is up to the natural or legal person who carries out changes or has changes carried out to the product to demonstrate that not all elements of the technical documentation need to be updated. The natural or legal person who carries out changes or has changes carried out to the product shall be responsible for the conformity of the modified product and draw a declaration of conformity, even if they use existing tests and technical documentation'.

[^17]: Additional criteria that may be taken into account, in accordance with Article 13(8), include the support periods of [[product with digital elements|products with digital elements]] offering a similar functionality [[placing on the market|placed on the market]] by other [[manufacturer|manufacturers]], the availability of the operating environment, the support periods of integrated [[component|components]] that provide core functions and are sourced from [[third party|third parties]] as well as relevant guidance provided by the CRA administrative cooperation group (ADCO) and the Commission.

[^18]: It should be [[recall of an AI system|recalled]] that Article 13(19) requires [[manufacturer|manufacturers]], where technically feasible in light of the nature of the [[product with digital elements]], to display a notification to [[user|users]] informing them that their [[product with digital elements]] has reached the end of its [[support period]]. Therefore, where addressing and remediating vulnerabilities for earlier versions is discontinued, it is expected that [[user|users]] who have not upgraded to the newest version are informed, if technically feasible.

[^19]: It should be noted that, where [[user|users]] can upgrade to the latest version of the [[software]] without additional costs, [[manufacturer|manufacturers]] may nevertheless choose to continue addressing and remediating vulnerabilities in earlier versions of that [[software]], including on a paid basis or under other commercial arrangements. The CRA does not require [[manufacturer|manufacturers]] to provide security updates for such earlier versions free of charge.

[^20]: maintenance or repair are generally not considered to amount to [[substantial modification|substantial modifications]].

[^21]: Commission Implementing Regulation (EU) 2025/2392 sets out the technical description of the categories of important and critical products.

[^22]: The term 'default' category is not a term defined in the CRA. The use of the term in this document refers to [[product with digital elements|products with digital elements]] that do not have the core functionality of a product category set out in Annexes III or IV to the CRA, and that consequently are [[subject]] to the [[conformity assessment]] regime set out in Article 32(1).

[^23]: The [[manufacturer]] can nonetheless always choose to apply a more stringent [[conformity assessment]] procedure, as set out in Article 32(1).

[^24]: This is also the case when making use of a European [[cybersecurity]] certification scheme with an assurance level at least 'substantial', as the involvement of a third-party certification body is required.

[^25]: For brevity's sake, the remainder of this section only refers to [[harmonised standard|harmonised standards]] the references of which have been published in the Official Journal of the European Union. However, the same guidance also applies to [[common specification|common specifications]] adopted in accordance with Article 27(2) and to European [[cybersecurity]] certification schemes where specified by the Commission via delegated acts in accordance with Article 27(9).

[^26]: As clearly stated in Section 4.1.2.2 of the Blue Guide, 'in [[risk]] related harmonisation legislation [...] [[manufacturer|manufacturers]] always, even when using [[harmonised standard|harmonised standards]] the references of which are published in the OJEU, remain fully responsible for assessing all the [[risk|risks]] of their product in order to determine which essential (or other) requirements are relevant. After this assessment a [[manufacturer]] may then choose to apply technical specifications given in [[harmonised standard|harmonised standards]] the references of which are published in the OJEU to implement '[[risk]] reduction measures' which are specified by [[harmonised standard|harmonised standards]]'.

[^27]: As above, for brevity's sake, the remainder of this section only refers to [[harmonised standard|harmonised standards]] the references of which have been published in the OJEU. However, the same guidance also applies to [[common specification|common specifications]] and to European [[cybersecurity]] certification schemes.

[^28]: Directive (EU) 2022/2555 of the European Parliament and of the Council of 14 December 2022 on measures for a high common level of [[cybersecurity]] across the Union, amending Regulation (EU) No 910/2014 and Directive (EU) 2018/1972, and repealing Directive (EU) 2016/1148 (NIS 2 Directive), OJ L 333, 27.12.2022, p. 80, ELI: http://data.europa.eu/eli/dir/2022/2555/2022-12-27.

[^29]: Commission Implementing Regulation (EU) 2024/2690 of 17 October 2024 laying down rules for the application of Directive (EU) 2022/2555 as regards technical and methodological requirements of [[cybersecurity]] [[risk]]-management measures and further specification of the cases in which an incident is considered to be significant with regard to DNS service [[provider|providers]], TLD name registries, cloud computing service [[provider|providers]], [[data]] centre service [[provider|providers]], content delivery network [[provider|providers]], managed service [[provider|providers]], managed security service [[provider|providers]], [[provider|providers]] of online market places, of [[online search engine|online search engines]] and of social networking services platforms, and trust service [[provider|providers]], OJ L, 2024/2690, 18.10.2024, ELI: http://data.europa.eu/eli/reg_impl/2024/2690/oj .

[^30]: To the extent that the steward is involved in the development of a [[product with digital elements]].

[^31]: [[product with digital elements|Products with digital elements]] [[placing on the market|placed on the market]] before 11 December 2027 are [[subject]] to Union legislation applicable at the time of their [[placing on the market]] and, if they were compliant, they can be sold and put into operation, unless they are, on or after 11 December 2027, subjected to [[substantial modification|substantial modifications]]. For the concept of '[[placing on the market]]' and '[[making available on the market]]', see also Section 2.1 [[placing on the market|Placing on the market]] of this document as well as Chapter 2 of the Blue Guide.
