CVE-2026-9758

HIGH

Improper Certificate Validation in S2OPC

Title source: cna
STIX 2.1

Description

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

References (1)

Core 1

Scores

CVSS v3 7.3
EPSS 0.0012
EPSS Percentile 2.1%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

CISA SSVC

Vulnrichment
Exploitation none
Automatable yes
Technical Impact partial

Details

CWE
CWE-295
Status published
Products (1)
Systerel/S2OPC 1.5.0 - 1.7.3
Published Jun 10, 2026
Tracked Since Jun 10, 2026