CVE-2025-40549

SolarWinds Serv-U Path Restriction Bypass Vulnerability

Published Nov 18, 2025 CVSS 3.1 · 9.1 Critical EPSS 1.1% KEV · Not listed
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.

Remediation

Vendor Solution

SolarWinds recommends that customers upgrade to SolarWinds Serv-U 15.5.3 as soon as it becomes available.

Tracking

Sign in to view the affected projects.

Advisories

No advisories available
History
Type Values Removed Values Added
CPEs cpe:2.3:a:solarwinds:serv-u:*:*:*:*:*:*:*:*
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Microsoft
Microsoft windows
Solarwinds
Solarwinds serv-u
Vendors & Products Microsoft
Microsoft windows
Solarwinds
Solarwinds serv-u
Type Values Removed Values Added
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.
Title SolarWinds Serv-U Path Restriction Bypass Vulnerability
Weaknesses CWE-22
References
Metrics cvssV3_1

{'score': 9.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
SolarWinds
Published
Updated
Feb 26, 2026, 4:56 PM
Reserved
Apr 16, 2025, 8:01 AM
Status
Analyzed
Published
Nov 18, 2025, 9:15 AM
Modified
Oct 18, 2026, 8:10 PM