CVE-2025-7390 Bypass the client certificate trust check of an opc.https server while only secure communication is allowed
Attackers can bypass client certificate trust checks in OPC UA servers configured for secure communication, undermining authentication integrity.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-7390?
CVE-2025-7390 is a critical vulnerability in Softing OPC UA C++ SDK, published on 21 Aug 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
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.
Weakness: CWE-295
Which versions are affected by CVE-2025-7390?
How do I fix CVE-2025-7390?
No fix has been published for CVE-2025-7390 yet. Limit exposure of the affected software until one is available.
Is CVE-2025-7390 being exploited?
There is no known exploitation of CVE-2025-7390 in the wild and no public exploit code.
Sources
Also known as GHSA-6g5p-c2f9-9435.