CVE-2025-40549 SolarWinds Serv-U Path Restriction Bypass Vulnerability
An attacker with admin privileges can bypass path restrictions to execute code on a directory in SolarWinds Serv-U.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-40549?
CVE-2025-40549 is a critical path traversal vulnerability in Solarwinds Serv-U, published on 18 Nov 2025. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
A Path Restriction Bypass vulnerability exists in Serv-U that when abused, could give a malicious actor with access to admin privileges the ability to execute code on a directory.
This issue requires administrative privileges to abuse. On Windows systems, this scored as medium due to differences in how paths and home directories are handled.
Weakness: CWE-22
Which versions are affected by CVE-2025-40549?
It affects 1 product.
Products include Solarwinds Serv-U.
How do I fix CVE-2025-40549?
No fix has been published for CVE-2025-40549 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-2025-40549 being exploited?
There is no known exploitation of CVE-2025-40549 in the wild and no public exploit code.
Other vulnerabilities in Solarwinds Serv-U
Sources
Also known as GHSA-hw4c-cmmg-hp4c.