CVE-2025-11743 HIGH

CVE-2025-11743: Rockwell Automation CompactLogix® 5370 Denial of Service Vulnerability

Vendor Rockwell Automation
Product CompactLogix® 5370
Weakness CWE-1284
Published January 20, 2026
Last update January 20, 2026
View on NVD All CVEs

CVSS base score

7.1/10
Attack vector Adjacent
Attack complexity Low
Privileges required None
User interaction None
Confidentiality —
Integrity —

CVSS vector

CVSS:4.0/AV:A/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

A denial-of-service security issue in the affected product. The security issue occurs when a malformed CIP forward open message is sent. This could result in a major nonrecoverable fault a restart is required to recover.

Key dates

02Disclosure timeline

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