Baitaphish
Security intelligence
SearchLatest briefing
CVE Explorer

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issue stems from the controller failing to properly reject certificates signed by an intermediate certificate that has been revoked via a Certificate Revocation List (CRL).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 protect
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:42aa975fa6aeb4fa443b83726cf5b08e7792490ad03aef78f2b572e51eea281e
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0

Affected products and versions

1 source assertion
{"defaultStatus":"unaffected","product":"ControlLogix® 5580, CompactLogix® 5380, GuardLogix® 5580, Compact GuardLogix® 5380, 1756-EN4TR","vendor":"Rockwell Automation","versions":[{"status":"affected","version":"Version 36 - Version 37"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:10fafde03f6234c1316c0879867f94c73755e939a18b6d133c9609c59065b0e3 · sha256:6422ed6de9d583b7… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"HIGH","attackRequirements":"PRESENT","attackVector":"NETWORK","baseScore":8.2,"baseSeverity":"HIGH","exploitMaturity":"NOT_DEFINED","privilegesRequired":"NONE","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","valueDensity":"NOT_DEFINED","vectorString":"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","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpac…
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:10fafde03f6234c1316c0879867f94c73755e939a18b6d133c9609c59065b0e3 · sha256:6422ed6de9d583b7… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

1 source assertion
{"cweId":"CWE-299","description":"CWE-299 Improper check for certificate revocation","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:10fafde03f6234c1316c0879867f94c73755e939a18b6d133c9609c59065b0e3 · sha256:6422ed6de9d583b7… · /containers/cna/problemTypes/0/descriptions/0

Source references

1 source assertion
{"url":"https://www.rockwellautomation.com/en-us/trust-center/security-advisories/advisory.SD1788.html"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:10fafde03f6234c1316c0879867f94c73755e939a18b6d133c9609c59065b0e3 · sha256:6422ed6de9d583b7… · /containers/cna/references/0

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

← Back to CVE Explorer