CVE-2025-40549

CRITICAL
2025-11-18 [email protected]
9.1
CVSS 3.1
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CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
Attack Vector
Network
Attack Complexity
Low
Privileges Required
High
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

3
Analysis Generated
Mar 28, 2026 - 19:22 vuln.today
Patch Released
Mar 28, 2026 - 19:22 nvd
Patch available
CVE Published
Nov 18, 2025 - 09:15 nvd
CRITICAL 9.1

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.

Analysis

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. Rated critical severity (CVSS 9.1), this vulnerability is remotely exploitable, low attack complexity. This Path Traversal vulnerability could allow attackers to access files and directories outside the intended path.

Technical Context

This vulnerability is classified as Path Traversal (CWE-22), which allows attackers to access files and directories outside the intended path. 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. Affected products include: Solarwinds Serv-U.

Affected Products

Solarwinds Serv-U.

Remediation

A vendor patch is available. Apply the latest security update as soon as possible. Validate and canonicalize file paths. Use chroot or sandboxing. Reject input containing path separators or '../' sequences.

Priority Score

46
Low Medium High Critical
KEV: 0
EPSS: +0.3
CVSS: +46
POC: 0

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CVE-2025-40549 vulnerability details – vuln.today

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