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2 vulnerabilities by Systerel

CVE-2026-9758 (GCVE-0-2026-9758)

Vulnerability from cvelistv5 – Published: 2026-06-10 12:32 – Updated: 2026-06-10 13:54
VLAI
Title
Improper Certificate Validation in S2OPC
Summary
Improper comparison with the certificates trusted list in S2OPC allows an attacker well-formed untrusted certificate to be considered trusted
Severity
7.3 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-295 - Improper Certificate Validation
Assigner
References
Impacted products
Vendor Product Version
Systerel S2OPC Affected: 1.5.0 , < 1.7.3 (semver)
Create a notification for this product.
Credits
Systerel
Show details on NVD website
To clipboard 

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CVE-2026-6899 (GCVE-0-2026-6899)

Vulnerability from cvelistv5 – Published: 2026-06-09 08:39 – Updated: 2026-06-09 14:25
VLAI
Title
Improper Check for Certificate Revocation in S2OPC
Summary
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.
Severity
5.6 (Medium)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-299 - Improper Check for Certificate Revocation
Assigner
References
Impacted products
Vendor Product Version
Systerel S2OPC Affected: 1.5.0 , < 1.7.3 (semver)
Create a notification for this product.
Credits
Systerel
Show details on NVD website
To clipboard 

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