ETSI EN 304 625 V1.0.0 (2026-08)

SLOVENSKI STANDARD
01-oktober-2026
Kibernetska varnost (CYBER) - CRA - Zahteve za kibernetsko varnost za fizične in
virtualne omrežne vmesnike
Cyber Security (CYBER) - CRA - Cybersecurity requirements for physical and virtual
network interfaces
Ta slovenski standard je istoveten z: ETSI EN 304 625 V1.0.0 (2026-08)
ICS:
35.030 Informacijska varnost IT Security
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

Draft ETSI EN 304 625 V1.0.0 (2026-08)

HARMONISED EUROPEAN STANDARD
Cyber Security (CYBER); CRA;
Cybersecurity requirements for physical and
virtual network interfaces
2 Draft ETSI EN 304 625 V1.0.0 (2026-08)

Reference
DEN/CYBER-EUS-0017
Keywords
CRA, cybersecurity, interface
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ETSI
3 Draft ETSI EN 304 625 V1.0.0 (2026-08)
Contents
Intellectual Property Rights . 15
Foreword . 15
Modal verbs terminology . 16
Introduction . 16
1 Scope . 17
2 References . 17
2.1 Normative references . 17
2.2 Informative references . 18
3 Definition of terms, symbols and abbreviations . 19
3.1 Terms . 19
3.2 Symbols . 20
3.3 Abbreviations . 20
4 Product context . 20
4.0 Introduction . 20
4.1 Product Functions . 21
4.1.1 Physical network interface product functions . 21
4.1.2 Device driver product functions . 22
4.1.3 Virtual network interface product functions . 22
4.2 Product Architecture. 22
4.2.1 Overview . 22
4.2.2 Types of network interface . 22
4.2.3 Device drivers for network interfaces . 24
4.3 Operational Environment . 25
4.3.1 General description . 25
4.3.2 Physical/Hardware environment . 25
4.3.3 Logical/Software environment. 25
4.3.4 Connectivity aspects . 26
4.4 Distribution of Security Functions . 26
4.4.1 General . 26
4.4.2 Security functions provided outside the product . 26
4.4.3 Security functions provided to other components . 26
4.5 Users . 27
4.6 Use Cases . 27
4.6.1 Introduction. 27
4.6.1.1 Overview . 27
4.6.1.2 Guidance . 28
4.6.2 Use case descriptions . 28
4.6.2.1 UC-VI-ISO: Virtual interface for research within a host system . 28
4.6.2.2 UC-PH-VNI: Vending machine internal network . 28
4.6.2.3 UC-PH-VNC: Vending machine, remotely managed . 29
4.6.2.4 UC-PH-IOT: Physical network interface for home IoT . 29
4.6.2.5 UC-PH-IRO: Intranet router. 29
4.6.2.6 UC-PH-EDG: Edge router . 30
4.6.2.7 UC-PH-HRO: Home router in filtered network . 30
4.6.2.8 UC-PH-ISP: ISP access point . 30
4.6.2.9 UC-VI-VDC: Virtualize data centre . 31
4.6.2.10 UC-VI-VMW: VM on multi-tenant web server . 31
4.6.2.11 UC-VI-VMC: Virtualize critical server . 31
4.6.2.12 UC-VI-VII: Virtual interface for integrators . 32
4.6.2.13 UC-PH-SMW: Smart watch . 32
4.6.2.14 UC-PH-SME: Smart meter . 33
4.6.2.15 UC-PH-ATM: ATM. 33
4.6.2.16 UC-PH-SPI: Solar panel inverter . 33
4.6.2.17 UC-VI-VPN: Consumer VPN . 34
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4 Draft ETSI EN 304 625 V1.0.0 (2026-08)
4.6.2.18 UC-PH-MOB: Mobile phone or tablet . 34
4.6.2.19 UC-PH-GPI: General purpose integrated . 34
4.6.2.20 UC-PH-USB: External USB . 35
4.6.2.21 UC-PH-STA: Standalone . 35
4.6.2.22 UC-PH-SNS: Remote Sensor . 35
5 Technical requirements for products . 36
5.1 Introduction . 36
5.1.1 Applicability of the requirements . 36
5.1.2 Applicability of Annex K . 36
5.1.3 Applicability of Annex R . 36
5.1.4 Guidance for "cybersecurity-relevant" . 36
5.2 Appropriate level of cybersecurity . 37
5.2.1 Overview . 37
5.2.1.1 CRA Relevance . 37
5.2.2 REQ-ALC-01 Resilience to potentially untrusted inputs . 37
5.2.2.1 Requirement . 37
5.2.2.2 Applicability. 37
5.2.3 Mapping of requirements to use cases . 38
5.3 No known exploitable vulnerabilities . 38
5.3.1 Overview . 38
5.3.2 REQ-KEV-01 No known exploitable vulnerabilities . 38
5.3.2.1 Requirement . 38
5.3.2.2 Applicability. 38
5.3.2.3 Guidance . 39
5.3.3 Mapping of requirements to use cases . 40
5.4 Secure by default configuration . 40
5.4.1 Overview . 40
5.4.2 REQ-SBD-01: Provide methods to protect or disable interfaces . 40
5.4.2.1 Requirement . 40
5.4.2.2 Applicability. 40
5.4.2.3 Guidance . 41
5.4.3 REQ-SBD-02: Protect or disable access to debug or management interfaces . 41
5.4.3.1 Requirement . 41
5.4.3.2 Applicability. 41
5.4.3.3 Guidance . 42
5.4.4 Mapping of requirements to use cases . 42
5.5 Security updates . 42
5.5.1 Overview . 42
5.5.2 REQ-SU-01: Secure update provided by operational environment . 43
5.5.2.1 Requirement . 43
5.5.2.2 Applicability. 43
5.5.3 Mapping of requirements to use cases . 44
5.6 Authentication and access control . 44
5.6.1 Overview . 44
5.6.2 REQ-AAC-01: Authentication and access control provided by operational environment. 44
5.6.2.1 Requirement . 44
5.6.2.2 Applicability. 44
5.6.3 Mapping of requirements to use cases . 45
5.7 Confidentiality protection . 46
5.7.1 Overview . 46
5.7.2 REQ-CP-01: Confidentiality protection provided by operational environment . 46
5.7.2.1 Requirement . 46
5.7.2.2 Applicability. 46
5.7.2.3 Guidance . 47
5.7.3 Mapping of requirements to use cases . 47
5.8 Integrity protection . 47
5.8.1 Overview . 47
5.8.2 REQ-IP-01: Integrity protection provided by operational environment . 47
5.8.2.1 Requirement . 47
5.8.2.2 Applicability. 47
5.8.3 Mapping of requirements to use cases . 48
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5 Draft ETSI EN 304 625 V1.0.0 (2026-08)
5.9 Data minimisation . 49
5.9.1 Overview . 49
5.9.2 REQ-DM-01: Data minimisation . 49
5.9.2.1 Requirement . 49
5.9.2.2 Applicability. 49
5.9.3 Mapping of requirements to use cases . 50
5.10 Availability protection . 50
5.10.1 Overview . 50
5.10.2 REQ-AP-01 Fast packet drop . 50
5.10.2.1 Requirement . 50
5.10.2.2 Applicability. 50
5.10.2.3 Guidance . 51
5.10.3 REQ-AP-02 Limit resource usage by incoming network data . 51
5.10.3.1 Requirement . 51
5.10.3.2 Applicability. 51
5.10.4 REQ-AP-03 Availability protection provided by operational environment . 52
5.10.4.1 Requirement . 52
5.10.4.2 Applicability. 52
5.10.5 REQ-AP-04: Watchdog and notification of host . 53
5.10.5.1 Requirement . 53
5.10.5.2 Applicability. 53
5.10.6 REQ-AP-05: Watchdog and self-initiated reset . 54
5.10.6.1 Requirement . 54
5.10.6.2 Applicability. 54
5.10.7 Mapping of requirements to use cases . 55
5.11 Non-interference . 55
5.11.1 Overview . 55
5.11.2 REQ-NI-01: Minimise data transmitted to unverified sources . 55
5.11.2.1 Requirement . 55
5.11.2.2 Applicability. 55
5.11.2.3 Guidance . 56
5.11.3 Mapping of requirements to use cases . 57
5.12 Attack surface minimisation . 57
5.12.1 Overview . 57
5.12.2 REQ-ASM-01: Minimise attack surface . 57
5.12.2.1 Requirement . 57
5.12.2.2 Applicability. 57
5.12.3 Mapping of requirements to use cases . 58
5.13 Exploit mitigation . 58
5.13.1 Overview . 58
5.13.2 Requirements . 58
5.13.3 Mapping of requirements to use cases . 59
5.14 Monitoring . 59
5.14.1 Overview . 59
5.14.2 REQ-MON-01: Logging . 59
5.14.2.1 Requirement . 59
5.14.2.2 Applicability. 59
5.14.3 Mapping of requirements to use cases . 60
5.15 Factory reset and data portability . 60
5.15.1 Overview . 60
5.15.2 REQ-SDT-01 Secure deletion. 61
5.15.2.1 Requirement . 61
5.15.2.2 Applicability. 61
5.15.3 REQ-SDT-02 Secure data read provided by operational environment . 62
5.15.3.1 Requirement . 62
5.15.3.2 Applicability. 62
5.15.4 Mapping of requirements to use cases . 63
6 Assessment criteria for compliance with technical requirements . 63
6.1 Introduction to the assessment and compliance criteria . 63
6.1.1 General . 63
6.1.2 Guidance for identifying interfaces or data processing . 65
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6 Draft ETSI EN 304 625 V1.0.0 (2026-08)
6.2 Appropriate level of cybersecurity . 65
6.2.1 Overview . 65
6.2.2 REQ-ALC-01 Resilience to potentially untrusted inputs . 65
6.2.2.1 Objective . 65
6.2.2.2 Preparation . 66
6.2.2.3 Activities . 67
6.2.2.4 Verdict . 67
6.2.2.5 Evidence . 67
6.2.2.6 Guidance . 67
6.3 No known exploitable vulnerabilities . 68
6.3.1 Overview . 68
6.3.2 REQ-KEV-01 No known exploitable vulnerabilities . 68
6.3.2.1 Objective . 68
6.3.2.2 Preparation . 68
6.3.2.3 Activities . 68
6.3.2.4 Verdict . 68
6.3.2.5 Evidence . 68
6.3.2.6 Guidance . 69
6.4 Secure by default configuration . 69
6.4.1 Overview . 69
6.4.2 REQ-SBD-01: Provide methods to protect or disable interfaces . 69
6.4.2.1 Objective . 69
6.4.2.2 Preparation . 69
6.4.2.3 Activities . 69
6.4.2.4 Verdict . 69
6.4.2.5 Evidence . 70
6.4.2.6 Guidance . 70
6.4.3 REQ-SBD-02: Protect or disable access to debug or management interfaces . 70
6.4.3.1 Objective . 70
6.4.3.2 Preparation . 70
6.4.3.3 Activities . 70
6.4.3.4 Verdict . 70
6.4.3.5 Evidence . 71
6.5 Security updates . 71
6.5.1 Overview . 71
6.5.2 REQ-SU-01 Secure update provided by operational environment . 71
6.5.2.1 Objective . 71
6.5.2.2 Preparation . 71
6.5.2.3 Activities . 71
6.5.2.4 Verdict . 71
6.5.2.5 Evidence . 71
6.5.2.6 Guidance . 72
6.6 Authentication and access control . 72
6.6.1 Overview . 72
6.6.2 REQ-AAC-01: Authentication and access control provided by operational environment. 72
6.6.2.1 Objective . 72
6.6.2.2 Preparation . 72
6.6.2.3 Activities . 72
6.6.2.4 Verdict . 72
6.6.2.5 Evidence . 72
6.7 Confidentiality protection . 72
6.7.1 Overview . 72
6.7.2 REQ-CP-01: Confidentiality protection provided by operational environment . 73
6.7.2.1 Objective . 73
6.7.2.2 Preparation . 73
6.7.2.3 Activities . 73
6.7.2.4 Verdict . 73
6.7.2.5 Evidence . 73
6.7.2.6 Guidance . 73
6.8 Integrity protection . 74
6.8.1 Overview . 74
6.8.2 REQ-IP-01: Integrity protection provided by operational environment . 74
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7 Draft ETSI EN 304 625 V1.0.0 (2026-08)
6.8.2.1 Objective . 74
6.8.2.2 Preparation . 74
6.8.2.3 Activities . 74
6.8.2.4 Verdict . 74
6.8.2.5 Evidence . 74
6.8.2.6 Guidance . 74
6.9 Data minimisation . 75
6.9.1 Overview . 75
6.9.2 REQ-DM-01: Minimise data processed . 75
6.9.2.1 Objective . 75
6.9.2.2 Preparation . 75
6.9.2.3 Activities . 75
6.9.2.4 Verdict . 75
6.9.2.5 Evidence .
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