CVE-2025-14027 HIGH

CVE-2025-14027: Rockwell Automation Recommends Upgrading From 1756-RM2 XT To 1756-RM3 XT

Vendor Rockwell Automation
Product ControlLogix® Redundancy Enhanced Module
Weakness CWE-401
Published January 20, 2026
Last update January 20, 2026

CVSS base score

8.7/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality
Integrity

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

What the vulnerability does

01Description

Multiple denial-of-service vulnerabilities exist in the affected product. These issues can be triggered through various crafted inputs, including malformed Class 3 messages, memory leak conditions, and other resource exhaustion scenarios. Exploitation may cause the device to become unresponsive and, in some cases, result in a major nonrecoverable fault. Recovery may require a restart.

Key dates

02Disclosure timeline

January 20, 2026 CVE published
January 20, 2026 Record updated