CVE-2026-6899: Improper Check for Certificate Revocation in S2OPC
Systerel · S2OPC
Vendor fix available · Affected: Systerel S2OPC · Exploitation: unlikely (under 1%)
Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.
Higher than 1% of scored CVEs
DescriptionCVE.org
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 products1
From the CVE record. A product or version that is not listed is unknown, not unaffected.
- Systerel · S2OPCfrom 1.5.0 before 1.7.3
On the Atlas
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CoverageNo articles yet
No CyberSIXT article names CVE-2026-6899 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.