Vulnerability in Rockwell Automation Controllogix® 5580, Compactlogix® 5380, Guardlogix® Compact 1756-en4tr
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 certifica…
Affected products
- Rockwell Automation Controllogix® 5580, Compactlogix® 5380, Guardlogix® Compact 1756-en4tr — versions Version 36 - Version 37