CVE-2026-9637

CompactLogix® 5380 / ControlLogix® 5580 - Multiple Vulnerabilities

State: Published
Severity: 8.7 High
Published: Sep 1, 2026
Updated: Sep 1, 2026
Reserved: May 26, 2026

Description

A denial-of-service security issue exists in the affected Logix platforms listed in the table above. The security issue stems from improper validation of input length during CIP message processing. This can result in a major nonrecoverable fault (MNRF), requiring a power cycle to recover

Scores

CVSS	Score	Vector	Source
4.0	8.7 High	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	Rockwell

Weaknesses

CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer

Affected Products

Product	Versions
CompactLogix® 5380 / ControlLogix® 5580Rockwell Automation	V33 and prior, V34.011-V34.014, V35.011-V35.013, V36.011-V36.012Affected

References

https://www.rockwellautomation.com/en-us/trust-center/security-advisories/advisory.SD1792.html

Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.