CVE-2025-8007

Rockwell Automation 1756-ENT2R, EN4TR, EN4TRXT Vulnerability

Published Sep 9, 2025 CVSS 4.0 · 7.1 High EPSS < 1% KEV · Not listed
Description
A security issue exists in the protected mode of 1756-EN4TR and 1756-EN2TR communication modules, where a Concurrent Forward Close operation can trigger a Major Non-Recoverable (MNFR) fault. This condition may lead to unexpected system crashes and loss of device availability.

Remediation

Vendor Solution

Version 7.001 or later

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2025-27254 A security issue exists in the protected mode of 1756-EN4TR and 1756-EN2TR communication modules, where a Concurrent Forward Close operation can trigger a Major Non-Recoverable (MNFR) fault. This condition may lead to unexpected system crashes and loss of device availability.
History
Type Values Removed Values Added
First Time appeared Rockwellautomation 1756-en2tr Series A
Rockwellautomation 1756-en2tr Series A Firmware
Rockwellautomation 1756-en2tr Series B
Rockwellautomation 1756-en2tr Series B Firmware
Rockwellautomation 1756-en2tr Series C
Rockwellautomation 1756-en2tr Series C Firmware
Rockwellautomation 1756-en4tr Firmware
Rockwellautomation 1756-en4trxt Firmware
Weaknesses NVD-CWE-noinfo
CPEs cpe:2.3:h:rockwellautomation:1756-en2tr_series_a:-:*:*:*:*:*:*:*
cpe:2.3:h:rockwellautomation:1756-en2tr_series_b:-:*:*:*:*:*:*:*
cpe:2.3:h:rockwellautomation:1756-en2tr_series_c:-:*:*:*:*:*:*:*
cpe:2.3:h:rockwellautomation:1756-en4tr:-:*:*:*:*:*:*:*
cpe:2.3:h:rockwellautomation:1756-en4trxt:-:*:*:*:*:*:*:*
cpe:2.3:o:rockwellautomation:1756-en2tr_series_a_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:rockwellautomation:1756-en2tr_series_b_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:rockwellautomation:1756-en2tr_series_c_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:rockwellautomation:1756-en4tr_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:rockwellautomation:1756-en4trxt_firmware:*:*:*:*:*:*:*:*
Vendors & Products Rockwellautomation 1756-en2tr Series A
Rockwellautomation 1756-en2tr Series A Firmware
Rockwellautomation 1756-en2tr Series B
Rockwellautomation 1756-en2tr Series B Firmware
Rockwellautomation 1756-en2tr Series C
Rockwellautomation 1756-en2tr Series C Firmware
Rockwellautomation 1756-en4tr Firmware
Rockwellautomation 1756-en4trxt Firmware
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}

Type Values Removed Values Added
First Time appeared Rockwellautomation
Rockwellautomation 1756-en4tr
Rockwellautomation 1756-en4trxt
Rockwellautomation 1756-ent2r
Vendors & Products Rockwellautomation
Rockwellautomation 1756-en4tr
Rockwellautomation 1756-en4trxt
Rockwellautomation 1756-ent2r
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description A security issue exists in the protected mode of 1756-EN4TR and 1756-EN2TR communication modules, where a Concurrent Forward Close operation can trigger a Major Non-Recoverable (MNFR) fault. This condition may lead to unexpected system crashes and loss of device availability.
Title Rockwell Automation 1756-ENT2R, EN4TR, EN4TRXT Vulnerability
Weaknesses CWE-20
References
Metrics cvssV4_0

{'score': 7.1, 'vector': 'CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N'}