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Vulnerability record · CVE-2026-9758 · published 10 June 2026

CVE-2026-9758: Improper certificate validation vulnerability

Improper comparison with the certificates trusted list in S2OPC allows an attacker well-formed untrusted certificate to be considered trusted

7.3 CVSS 3.1 High EPSS 0.19% · top 91.9% CWE-295 · Improper certificate validation Deferred
7.3CVSS 3.1 base score
0.19%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
1References
17 Jun 2026Last modified by NVD

Description

Improper comparison with the certificates trusted list in S2OPC allows an attacker well-formed untrusted certificate to be considered trusted

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

References

LinkTags
https://gitlab.com/systerel/S2OPC/-/work_items/1770

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Source: NIST National Vulnerability Database (record CVE-2026-9758), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.