SolarWinds Serv-U Broken Access Control Remote Code Execution Vulnerability
(CVE-2025-40538)
Summary
A broken access control vulnerability exists in Serv-U which when exploited together, gives a malicious actor the ability to create a system admin user and execute arbitrary code as a privileged account via domain admin or group admin privileges.
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.
Affected Products
SolarWinds Serv-U 15.5
Fixed Software Release
Advisory Detail
Severity
9.1 Critical
Advisory ID
First Published
02/24/2026
Last Published
02/24/2026