CVE-2025-40549

Name: CVE-2025-40549
Creator: NVD / NIST
Published: 2025-11-18T09:15:52.347+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.1/10EPSS 0.98%

Last modified Jun 17, 2026

CVE-2025-40549 is a critical-severity vulnerability rated 9.1/10 on the CVSS scale. A Path Restriction Bypass vulnerability exists in Serv-U that when abused, could give a malicious actor with access to admin privileges the ability to execute code on a directory. This issue requires administrative privileges to abuse. EPSS estimates a 0.98% chance of exploitation in the next 30 days.

Description

A Path Restriction Bypass vulnerability exists in Serv-U that when abused, could give a malicious actor with access to admin privileges the ability to execute code on a directory. This issue requires administrative privileges to abuse. On Windows systems, this scored as medium due to differences in how paths and home directories are handled.

Metrics

CVSS 3.1

9.1/10

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

EPSS Probability

0.98%

57.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-22

Affected Software

Vendor	Product	Versions
Solarwinds	Serv-U	< 15.5.3

References

https://documentation.solarwinds.com/en/success_center/servu/content/release_notes/servu_15-5-3_release_notes.htmRelease Notes
https://www.solarwinds.com/trust-center/security-advisories/CVE-2025-40549Patch, Vendor Advisory

Timeline

Published: Nov 18, 2025
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2025-40549?

How severe is CVE-2025-40549?

CVE-2025-40549 has a CVSS score of 9.1/10 (CRITICAL severity). The EPSS model estimates a 0.98% probability of exploitation in the next 30 days.

How do I fix CVE-2025-40549?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2025-40549?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST