CVE-2025-11743

Rockwell Automation CompactLogix® 5370 Denial of Service Vulnerability

Published Jan 20, 2026 CVSS 4.0 · 7.1 High EPSS < 1% KEV · Not listed
Description
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.

Remediation

Vendor Solution

Versions 37.011 and later, Version 34.016, Version 35.015, Version 36.012 https://compatibility.rockwellautomation.com/Pages/MultiProductFindDownloads.aspx

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Rockwellautomation
Rockwellautomation compactlogix 5370
Vendors & Products Rockwellautomation
Rockwellautomation compactlogix 5370
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description 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.
Title Rockwell Automation CompactLogix® 5370 Denial of Service Vulnerability
Weaknesses CWE-1284
References
Metrics cvssV4_0

{'score': 7.1, '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'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
Rockwell
Published
Updated
Jan 20, 2026, 2:58 PM
Reserved
Oct 14, 2025, 2:07 PM
Status
Deferred
Published
Jan 20, 2026, 2:16 PM
Modified
Jun 17, 2026, 8:31 AM