PT-2026-65843 · S2Opc · S2Opc

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CVE-2026-18257

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Published

2026-07-29

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Updated

2026-07-29

CVSS v3.1

5.6

Medium

VectorAV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
Name of the Vulnerable Software and Affected Versions S2OPC (affected versions not specified)
Description The CycloneCrypto cryptographic wrapper of S2OPC contains an improper validity period check for root issuer certificates. This flaw allows a certificate issued by the root issuer to be incorrectly considered trusted.
Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Improper Certificate Validation

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Weakness Enumeration

Related Identifiers

CVE-2026-18257

Affected Products

S2Opc