CVE-2025-40629 Path Traversal vulnerability in PNETLab
Attackers can read sensitive files outside the intended directory by manipulating file paths in HTTP requests in PNETLab.
- 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-2025-40629?
CVE-2025-40629 is a high-severity path traversal vulnerability in PNETLab, published on 16 May 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
PNETLab 4.2.10 does not properly sanitize user inputs in its file access mechanisms. This allows attackers to perform directory traversal by manipulating file paths in HTTP requests. Specifically, the application is vulnerable to requests that access sensitive files outside the intended directory.
Weakness: CWE-22
Which versions are affected by CVE-2025-40629?
How do I fix CVE-2025-40629?
No fix has been published for CVE-2025-40629 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-2025-40629 being exploited?
There is no known exploitation of CVE-2025-40629 in the wild and no public exploit code.
Public exploit code: 1 proofs of concept on GitHub.
Sources
Also known as GHSA-xwfw-xfh4-73wv.