CVE-2025-11743

Rockwell Automation CompactLogix® 5370 Denial of Service Vulnerability

HIGH

7.1

CVSS Score

Published: January 20, 2026 at 01:52 PM UTC

Updated: June 17, 2026 at 08:31 AM UTC

1 product affected across 1 vendorCompactLogix 5370

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Severity

HIGH7.1

Exploit prediction

EPSS 0.2%

SSVC

No known exploit

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

CompactLogix 5370 · Rockwell Automation

60%

v ≤ 34.013

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

Source: cverecord

https://www.rockwellautomation.com/en-us/trust-center/security-advisories/advisory.SD1770.html

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.1HIGHRockwell

Vector?

Quick Info

StatusDEFERRED

CWE

CWE-1284

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