Serv-U

CVE-2025-40548: SolarWinds Serv-U Broken Access Control - Remote Code Execution Vulnerability

A missing validation process exists in Serv U when abused, could give a malicious actor with access to admin privileges the ability to execute code.

Published

ExploitedNot in CISA KEV
Ransomware useNot reportedPer CISA
SeverityCRITICALCVSS 3.1 9.1
EPSS0.70%Chance of exploitation in 30 days
Public exploitNot tracked
FixSee advisory

Automatic summary from the vendor's CVE record. We haven't written a full analysis of this vulnerability yet.

Affected and fixed versions

Product / branchFixed in
Serv-U (Windows, Linux) SolarWinds Serv-U 15.5See the advisory

Always confirm against the vendor advisory, which lists every fixed hotfix.

What it is

A missing validation process exists in Serv U when abused, could give a malicious actor with access to admin privileges the ability to execute code.

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.

Sources

KEV status, EPSS score and vendor data refreshed automatically, last on 13 Oct 2026.

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