Rockwell Automation ControlLogix, CompactLogix, GuardLogix, and 1756-EN4TR Improper Check for Certificate Revocation (CVE-2026-9636)

Version 1.2

Jul 30, 2026, 11:45 AM

CVSS metrics ("Cvssv4 score" set to 8.2)
CVSS metrics ("Cvssv4 supplemental" set to "CVSS:4.0/U:Amber")
CVSS metrics ("Cvssv4 threat vector" set to "CVSS:4.0/E:U")
CVSS metrics ("Cvssv4 vector" set to "CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N")
CVSS temporal metrics ("CVSSv3 temporal vector" set to "CVSS:3.0/E:U/RL:O/RC:C")
CVSSv4 severity (based on None, severity increased from "Medium" to "High")
Exploit attributes ("Exploit available" set to "False")
Exploit attributes ("Exploitability ease" set to "No known exploits are available")