CVE-2025-8007
mediumpriority · track · 26EPSS 0.003 · 18 %ileEUUSEPSS · scored 2026-10-27
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.
remediations
Vendor fix, mitigation, or workaround guidance, as published by each source.
No vendor fix yet; a mitigation is available.
- Mitigation1756-EN4TRcisa_csaf_ot
Rockwell Automation also recommends users follow their published Security Best Practices.
https://support.rockwellautomation.com/app/answers/answer_view/a_id/1085012/loc/en_US#__highlight - Mitigation1756-EN4TRXTcisa_csaf_ot
Rockwell Automation also recommends users follow their published Security Best Practices.
https://support.rockwellautomation.com/app/answers/answer_view/a_id/1085012/loc/en_US#__highlight
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 4.9–7.1
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (10)
Products and version ranges known to be affected.
- rockwellautomation 1756-en2tr series a firmware< 7.001nvdUScpe:2.3:o:rockwellautomation:1756-en2tr_series_a_firmware:*:*:*:*:*:*:*:*
- rockwellautomation 1756-en2tr series b firmware< 7.001nvdUScpe:2.3:o:rockwellautomation:1756-en2tr_series_b_firmware:*:*:*:*:*:*:*:*
- rockwellautomation 1756-en2tr series c firmware< 7.001nvdUScpe:2.3:o:rockwellautomation:1756-en2tr_series_c_firmware:*:*:*:*:*:*:*:*
- rockwellautomation 1756-en4tr firmware< 7.001nvdUScpe:2.3:o:rockwellautomation:1756-en4tr_firmware:*:*:*:*:*:*:*:*
- rockwellautomation 1756-en4trxt firmware< 7.001nvdUScpe:2.3:o:rockwellautomation:1756-en4trxt_firmware:*:*:*:*:*:*:*:*
advisories (1)
Vendor and ecosystem advisories describing this.
- ICSA-25-226-31Rockwell Automation 1756-EN4TR, 1756-EN4TRXT (Update B)2025-08-14icsa · cisa_csaf_otUS
Successful exploitation of these vulnerabilities could result in an attacker causing a denial of service condition.
also known as (3)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (3)
External citations — patches, advisories, analysis.
- https://www.rockwellautomation.com/en-us/trust-center/security-advisories/advisory.SD1739.htmlcnnvd
- https://www.rockwellautomation.com/en-us/trust-center/security-advisories/advisory.SD1739.htmlenisa_euvd
- https://www.rockwellautomation.com/en-us/trust-center/security-advisories/advisory.SD1739.htmlVendor Advisorynvd
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