Home/CVE/A security issue exists in the protected mode of 1756-EN4TR and 1756-EN2TR communication modules, where a Concurrent For
CVE

CVE-2025-8007

A security issue exists in the protected mode of 1756-EN4TR and 1756-EN2TR communication modules, where a Concurrent For

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.

MEDIUM · CVSS 6.5 EPSS 0.00065
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  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-20Improper Input Validation
▤

Affected Products & Versions

5
rockwellautomation 1756-en2tr series a firmware< 7.001
rockwellautomation 1756-en2tr series b firmware< 7.001
rockwellautomation 1756-en2tr series c firmware< 7.001
rockwellautomation 1756-en4tr firmware< 7.001
rockwellautomation 1756-en4trxt firmware< 7.001
▣

Scoring & Timeline

6.5
MEDIUM · CVSS v3.1 · PSIRT@rockwellautomation.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD09 Sep 2025 · 01:15 PM
CVSS VectorCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
no
Technical impact
partial
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
⚑

Vendor Advisories

1
cisa-csafcisa-csaf-csaf_files-OT-white-2025-icsa-25-226-31
🔗

References & Sources

1
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://www.rockwellautomation.com/en-us/trust-center/security-advisories/advisory.SD1739.htmlVendor Advisory
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