CVE-2025-40763 Path traversal in Altair Grid Engine
Local attackers can execute arbitrary code with superuser privileges by manipulating environment variables to load malicious shared libraries.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-40763?
CVE-2025-40763 is a high-severity path traversal vulnerability in Siemens Altair Grid Engine, published on 11 Nov 2025. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
A vulnerability has been identified in Altair Grid Engine (All versions < V2026.0.0). Affected products do not properly validate environment variables when loading shared libraries, allowing path hijacking through malicious library substitution. This could allow a local attacker to execute arbitrary code with superuser privileges by manipulating the environment variable and placing a malicious library in the controlled path.
Weakness: CWE-427
Which versions are affected by CVE-2025-40763?
How do I fix CVE-2025-40763?
No fix has been published for CVE-2025-40763 yet. Limit exposure of the affected software until one is available.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2025-40763 being exploited?
There is no known exploitation of CVE-2025-40763 in the wild and no public exploit code.
Sources
Also known as GHSA-3988-jj2m-p6m7.