CVE-2025-40547

9.1 CRITICAL 1.0% exploit odds Fix listed Code execution Server

What it is

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.

At a glance

Exploitability: Can be exploited over the network with an admin-level account. High risk of data exposure, data tampering, service disruption.
Exploit odds: 1.0% chance of exploitation in the next 30 days (EPSS).
Fix: A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

2025-11-18 09:15 UTC PublishedDisclosed publicly on CVE.org and NVD
2026-10-18 20:10 UTC Last updatedMost recent change to the record

Details

Published: 2025-11-18 09:15 UTC
Last modified: 2026-10-18 20:10 UTC
Exploit probability: 1.0% · EPSS, next 30 days
Weakness: CWE-116
Record status: Analyzed

Affected

Solarwinds serv-u < 15.5.3

Attack profile CVSS 3.1 · 9.1

Attack vector: Network
Complexity: Low
Privileges needed: High
User interaction: None
Scope: Changed
Confidentiality: High
Integrity: High
Availability: High

Raw vector

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

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Fix and advisories

https://www.solarwinds.com/trust-center/security-advisories/CVE-2025-40547

References

NVD record · CVE.org record