Skip to content
OpenAdvisories
Medium ICSA-25-226-31 2 CVEs

Rockwell Automation 1756-EN4TR, 1756-EN4TRXT (Update B)

Published Aug 14, 2025 · Updated Oct 7, 2025 · Revision 3

Vendor: Rockwell Automation Product: 1756-EN4TR Product: 1756-EN4TRXT

Summary

Successful exploitation of these vulnerabilities could result in an attacker causing a denial of service condition.

Vulnerabilities 2

  • High 7.1
    CVE-2025-8007

    Rockwell Automation 1756-ENT2R, EN4TR, EN4TRXT Vulnerability

    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 dev…

    Rockwell Automation 1756-ENT2R, 1756-EN4TR, 1756-EN4TRXT ICS / OT
  • High 7.1
    CVE-2025-8008

    Rockwell Automation 1756-ENT2R, EN4TR, EN4TRXT Vulnerability

    A security issue exists in the protected mode of EN4TR devices, where sending specifically crafted messages during a Forward Close operation can cause the device to crash.

    Rockwell Automation 1756-ENT2R, 1756-EN4TR, 1756-EN4TRXT ICS / OT

Revision history

  1. #3

    Update B - Removed affected product

  2. #2

    Update A - Adjusted affected versions

  3. #1

    Initial Publication

References