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CVE-2025-11743

Rockwell Automation CompactLogix® 5370 Denial of Service Vulnerability

Published: Jan 20, 2026Updated: Jan 26, 2026 Sources: CVE List NVD BDU csafCWE-1284
NVD MITRE
6.5CVSSMEDIUM
EPSS Score
0.2%
Top 94.6%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

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.

CVSS Vector Breakdown

AV:AAC:LC:NI:NA:H
Exploitability
AV:AAccess Vector
Adjacent Network
AC:LAccess Complexity
Low
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:HAvailability
H
Open in CVSS calculator →

Weaknesses

CWE-1284

Affected Products

CompactLogix® 5370Rockwell AutomationICS / OT / IoT
CompactLogix 5370Rockwell Automation Inc.ICS / OT / IoT
rockwell automationcommercialUSICS / OT / IoTaka arena®, arena simulation, armorstart st
rockwell automation inc.commercialUSICS / OT / IoTaka rockwell automation arena, thinmanager, guardlogix 5580

Exploitability

Official Patch Available

References

https://www.rockwellautomation.com/en-us/trust-center/security-advisories/advisory.SD1770.html
rockwellautomation.com
https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/OT/white/2026/icsa-26-022-03.json
raw.githubusercontent.com
https://www.cisa.gov/news-events/ics-advisories/icsa-26-022-03
cisa.gov
and 15 more references View all →

Timeline

Published
Jan 20, 2026
Last Updated
Jan 26, 2026

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