CVE-2025-7390 CRITICAL

CVE-2025-7390: Bypass the client certificate trust check of an opc.https server while only secure communication is allowed

Vendor Softing
Product OPC UA C++ SDK
Weakness CWE-295
Published August 21, 2025
Last update March 27, 2026
View on NVD All CVEs

CVSS base score

9.1/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality High
Integrity High

CVSS vector

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

What the vulnerability does

01Description

A malicious client can bypass the client certificate trust check of an opc.https server when the server endpoint is configured to allow only secure communication.

Key dates

02Disclosure timeline

August 21, 2025 CVE published
March 27, 2026 Record updated