CVE-2026-9636

A security issue exists within CompactLogix® 5380, ControlLogix® 5580, and EN4 communication modules related to CIP Security certificate revocation handling. The security issue stems from the controller failing to properly reject certificates signed by an intermediate certificate that has been revoked via a Certificate Revocation List (CRL). This could allow a network-based attacker to establish a connection using a certificate that should be untrusted, potentially bypassing CIP Security protections.

CVSS

No CVSS.

References

Link	Resource
https://www.rockwellautomation.com/en-us/trust-center/security-advisories/advisory.SD1788.html

Configurations

No configuration.

History

14 Jul 2026, 16:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-07-14 16:17

Updated : 2026-07-14 16:46

NVD link : CVE-2026-9636

Mitre link : CVE-2026-9636

CVE.ORG link : CVE-2026-9636

JSON object : View

Products Affected

No product.

CWE

CWE-299

Improper Check for Certificate Revocation

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