CVE-2026-9758 HIGH

CVE-2026-9758: Improper Certificate Validation in S2OPC

Vendor Systerel
Product S2OPC
Weakness CWE-295
Published June 10, 2026
Last update June 10, 2026

CVSS base score

7.3/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality Low
Integrity Low

CVSS vector

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

What the vulnerability does

01Description

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

Key dates

02Disclosure timeline

June 10, 2026 CVE published
June 10, 2026 Record updated