The vulnerability of the Certificate Revocation List (CRL) function in Rockwell Automation’s programmable logic controllers ControlLogix 5580, GuardLogix 5580, CompactLogix 5380, and Compact GuardLogix 5380 allows a intruder to circumvent security restrictions.
🗓️ 20 Jul 2026 00:00:00Reported by FSTEC of Russia — Information Security Threat DatabaseType 
bdu_fstec🔗 bdu.fstec.ru👁 4 Views
| Reporter | Title | Published | Views | Family All 8 |
|---|---|---|---|---|
 | CVE-2026-9636 | 14 Jul 202615:11 | – | cve |
 | CVE-2026-9636 Rockwell Automation CompactLogix® 5380 ControlLogix® 5580 / 1756-EN4 Communications Module – Certificate Revocation List Vulnerability | 14 Jul 202615:11 | – | cvelist |
 | EUVD-2026-43709 | 14 Jul 202618:31 | – | euvd |
 | Rockwell Automation CompactLogix 5380 ControlLogix 5580 / 1756-EN4TR Communications Module | 30 Jul 202606:00 | – | ics |
 | CVE-2026-9636 | 14 Jul 202616:17 | – | nvd |
 | PT-2026-58085 | 14 Jul 202600:00 | – | ptsecurity |
 | Rockwell Automation ControlLogix, CompactLogix, GuardLogix, and 1756-EN4TR Improper Check for Certificate Revocation (CVE-2026-9636) | 29 Jul 202600:00 | – | nessus |
 | CVE-2026-9636 Rockwell Automation CompactLogix® 5380 ControlLogix® 5580 / 1756-EN4 Communications Module – Certificate Revocation List Vulnerability | 14 Jul 202615:11 | – | vulnrichment |
Node
OR
| Source | Link |
|---|---|
| rockwellautomation | www.rockwellautomation.com/en-us/trust-center/security-advisories/advisory.SD1788.html |
| web | www.web.nvd.nist.gov/view/vuln/detail |
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20 Jul 2026 00:00Current
5.3Medium risk
Vulners AI Score5.3
CVSS 25.4
CVSS 35.9
EPSS0.0014