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CVE-2025-40549— SolarWinds Serv-U Path Restriction Bypass Vulnerability

Quick assessment

Affected
SolarWinds Serv-U
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

SolarWinds Serv-U是美国SolarWinds公司的一款 FTP（文件传输协议）服务器软件。 SolarWinds Serv-U存在路径遍历漏洞，该漏洞源于路径限制绕过，可能导致管理员权限的攻击者在目录中执行代码。

CVSS 9.1 · Critical EPSS 1.07% · P64
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I. Basic Information for CVE-2025-40549

Vulnerability Information
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Vulnerability Title
SolarWinds Serv-U Path Restriction Bypass Vulnerability
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
对路径名的限制不恰当(路径遍历)
Source: CVE Program / CVE List V5
Vulnerability Title
SolarWinds Serv-U 路径遍历漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
SolarWinds Serv-U是美国SolarWinds公司的一款 FTP（文件传输协议）服务器软件。 SolarWinds Serv-U存在路径遍历漏洞，该漏洞源于路径限制绕过，可能导致管理员权限的攻击者在目录中执行代码。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

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Affected Products

Vendor Product Affected Versions CPE Subscribe
SolarWinds Serv-U SolarWinds Serv-U 15.5.2 and prior versions -

II. Public POCs for CVE-2025-40549

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III. Intelligence Information for CVE-2025-40549

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Vendor Pages for CVE-2025-40549 (1)

Same Patch Batch · SolarWinds · 2025-11-18 · 5 CVEs total

CVE-2025-40548 9.1 CRITICAL SolarWinds Serv-U Broken Access Control - Remote Code Execution Vulnerability
CVE-2025-40547 9.1 CRITICAL SolarWinds Serv-U Logic Abuse - Remote Code Execution Vulnerability
CVE-2025-26391 5.4 MEDIUM SolarWinds Observability Self-Hosted XSS Vulnerability
CVE-2025-40545 4.8 MEDIUM SolarWinds Observability Self-Hosted Open Redirection Vulnerability

IV. Related Vulnerabilities

Same product: Serv-U
Same vendor: SolarWinds
Same weakness: CWE-22

V. Comments for CVE-2025-40549

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