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CVE-2026-9636 Rockwell Automation CompactLogix® 5380 ControlLogix® 5580 / 1756-EN4 Communications Module – Certificate Revocation List Vulnerability

🗓️ 14 Jul 2026 15:11:42Reported by RockwellType 
cvelist
 cvelist
🔗 www.cve.org👁 18 Views

Rockwell CompactLogix and ControlLogix modules fail to reject revoked intermediate certificates, enabling untrusted certificates to connect.

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Affected
Refs
ReporterTitlePublishedViews
Family
CVE
CVE-2026-9636
14 Jul 202615:11
cve
EUVD
EUVD-2026-43709
14 Jul 202618:31
euvd
NVD
CVE-2026-9636
14 Jul 202616:17
nvd
Positive Technologies
PT-2026-58085
14 Jul 202600:00
ptsecurity
Vulnrichment
CVE-2026-9636 Rockwell Automation CompactLogix® 5380 ControlLogix® 5580 / 1756-EN4 Communications Module – Certificate Revocation List Vulnerability
14 Jul 202615:11
vulnrichment
[
  {
    "vendor": "Rockwell Automation",
    "product": "ControlLogix® 5580, CompactLogix® 5380, GuardLogix® 5580, Compact GuardLogix® 5380, 1756-EN4TR",
    "versions": [
      {
        "status": "affected",
        "version": "Version 36 - Version 37"
      }
    ],
    "defaultStatus": "unaffected"
  }
]

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