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OpenAdvisories
Medium · 5.6 CVE-2026-6899 EUVD-2026-35380GHSA-j893-vcpr-rgfc

Improper Check for Certificate Revocation in S2OPC

Published Jun 9, 2026 · Updated Jun 9, 2026 · Assigned by GitLab

Description

Check for certificate revocation only considers the first matching CRL and ignores other valid CRLs of the same CA in the CycloneCrypto cryptographic wrapper of S2OPC library. It might allow connection between an OPC UA client and server using a revoked certificate.

Affected products

VendorProductAffectedFixed
Systerel S2OPC 1.5.0 – < 1.7.3 1.7.3

References