CVE-2025-0664 Code injection in Trellix Endpoint Security (HX) Agent
A privileged local user can exploit OpenSSL configuration handling to load arbitrary libraries, achieving SYSTEM-level code execution on Trellix Endpoint Security agents.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-0664?
CVE-2025-0664 is a medium-severity code injection vulnerability in Trellix Endpoint Security (HX) Agent, published on 21 Jul 2025. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
A locally authenticated, privileged user can craft a malicious OpenSSL configuration file, potentially leading the agent to load an arbitrary local library. This may impair endpoint defenses and allow the attacker to achieve code execution with SYSTEM-level privileges.
Weakness: CWE-94
Which versions are affected by CVE-2025-0664?
How do I fix CVE-2025-0664?
No fix has been published for CVE-2025-0664 yet. Limit exposure of the affected software until one is available.
Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.
Is CVE-2025-0664 being exploited?
There is no known exploitation of CVE-2025-0664 in the wild and no public exploit code.
Sources
Also known as GHSA-mgfp-cfcp-654m.