CVE Explorer
CVE-2026-6899
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.
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0
Affected products and versions
1 source assertion{"defaultStatus":"unaffected","product":"S2OPC","vendor":"Systerel","versions":[{"lessThan":"1.7.3","status":"affected","version":"1.5.0","versionType":"semver"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:d42e0fb83659be3718bd74d13e93234a6c2aa4a39c7c2261ac91e1180a19d09d · sha256:183b8f41b583d54f… · /containers/cna/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"LOW","baseScore":5.6,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"LOW","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L","version":"3.1"},"metric_type":"cvssV3_1"}
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:d42e0fb83659be3718bd74d13e93234a6c2aa4a39c7c2261ac91e1180a19d09d · sha256:183b8f41b583d54f… · /containers/cna/metrics/0/cvssV3_1
CWE assertions
1 source assertion{"cweId":"CWE-299","description":"CWE-299: Improper Check for Certificate Revocation","lang":"en","type":"CWE"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:d42e0fb83659be3718bd74d13e93234a6c2aa4a39c7c2261ac91e1180a19d09d · sha256:183b8f41b583d54f… · /containers/cna/problemTypes/0/descriptions/0
Source references
1 source assertion{"url":"https://gitlab.com/systerel/S2OPC/-/work_items/1739"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:d42e0fb83659be3718bd74d13e93234a6c2aa4a39c7c2261ac91e1180a19d09d · sha256:183b8f41b583d54f… · /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.