CVE-2025-40547

Critical

Description

A logic error vulnerability exists in Serv-U which 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.

SeverityCritical
CVSS9.1
Exploit probability—
ProductSolarwinds Serv-u
PublishedNov 18, 2025
First seenNov 18, 2025
Weakness typeCWE-116CWE-116

How to fix

Update
  • solarwinds serv-u15.5.3 or later

Affected products

ProductAffected versionsFixed in
solarwinds serv-uv < 15.5.315.5.3

Check your version

Choose the product and enter the version you run to see whether it falls in the affected range.

In the Intelligence 360 plan

Attack Surface Management

See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.

CVE-2025-40547 · Solarwinds Serv-u · Dark Radar