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7.2
Serv-U Allows Malicious Code Execution as Privileged Account
CVE-2025-40539
Summary
A weakness in Serv-U allows an attacker to run any code with administrative privileges, which could lead to unauthorized changes or data theft. This is most concerning for Windows users, as many Serv-U services run under less-privileged accounts by default, making it easier to exploit. To mitigate this risk, ensure all Serv-U services are running under a highly restricted, non-administrative account.
What to do
No fix is available yet. Check with your software vendor for updates.
Affected software
| Vendor | Product | Affected versions | Fix available |
|---|---|---|---|
| solarwinds | serv-u | <= 15.5.4 | – |
Original title
A type confusion vulnerability exists in Serv-U which when exploited, gives a malicious actor the ability to execute arbitrary native code as privileged account.
This issue requires administrative...
Original description
A type confusion vulnerability exists in Serv-U which when exploited, gives a malicious actor the ability to execute arbitrary native code as privileged account.
This issue requires administrative privileges to abuse. On Windows deployments, the risk is scored as a medium because services frequently run under less-privileged service accounts by default.
This issue requires administrative privileges to abuse. On Windows deployments, the risk is scored as a medium because services frequently run under less-privileged service accounts by default.
nvd CVSS3.1
7.2
Vulnerability type
CWE-704
- https://documentation.solarwinds.com/en/success_center/servu/content/release_not... Release Notes Vendor Advisory
- https://www.solarwinds.com/trust-center/security-advisories/CVE-2025-40539 Vendor Advisory
Published: 24 Feb 2026 · Updated: 12 Mar 2026 · First seen: 6 Mar 2026