CVE-2026-6899
MEDIUM
NVD
CVSS Score
5.6
Severity
MEDIUM
Published
Jun 09, 2026
Vendor
unknown
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.