Vulnerability · Published Jan 20, 2026 · Assigned by Rockwell
CVE-2025-14027Rockwell Automation Recommends Upgrading From 1756-RM2 XT To 1756-RM3 XT
High 8.7
In plain English
A high-severity memory leak in ControlLogix® Redundancy Enhanced Module from Rockwell Automation. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 32% of all known vulnerabilities).
Official description
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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Rockwell Automation | ControlLogix® Redundancy Enhanced Module | All Versions |
Weakness: CWE-401 · 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