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    2 vulnerabilities found for ControlLogix® 5580, CompactLogix® 5380, GuardLogix® 5580, Compact GuardLogix® 5380, 1756-EN4TR by Rockwell Automation

    CVE-2026-9636 (GCVE-0-2026-9636)

    Vulnerability from nvd – Published: 2026-07-14 15:11 – Updated: 2026-07-14 15:55
    VLAI
    Title
    Rockwell Automation CompactLogix® 5380 ControlLogix® 5580 / 1756-EN4 Communications Module – Certificate Revocation List Vulnerability
    Summary
    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issue stems from the controller failing to properly reject certificates signed by an intermediate certificate that has been revoked via a Certificate Revocation List (CRL).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.
    Severity
    8.2 (High)
    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
    SSVC
    Exploitation: none Automatable: no Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-299 - Improper check for certificate revocation
    Assigner
    References
    Impacted products
    Show details on NVD website
    To clipboard 

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    CVE-2026-9636 (GCVE-0-2026-9636)

    Vulnerability from cvelistv5 – Published: 2026-07-14 15:11 – Updated: 2026-07-14 15:55
    VLAI
    Title
    Rockwell Automation CompactLogix® 5380 ControlLogix® 5580 / 1756-EN4 Communications Module – Certificate Revocation List Vulnerability
    Summary
    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issue stems from the controller failing to properly reject certificates signed by an intermediate certificate that has been revoked via a Certificate Revocation List (CRL).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.
    Severity
    8.2 (High)
    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
    SSVC
    Exploitation: none Automatable: no Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-299 - Improper check for certificate revocation
    Assigner
    References
    Impacted products
    Show details on NVD website
    To clipboard 

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