#VU123150 Type Confusion in Serv-U FTP Server and Serv-U MFT Server - CVE-2025-40539

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Main Vulnerability Database Vulnerabilities #VU123150

#VU123150 Type Confusion in Serv-U FTP Server and Serv-U MFT Server - CVE-2025-40539

Published: February 24, 2026


Vulnerability identifier: #VU123150
Vulnerability risk: High
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2025-40539
CWE-ID: CWE-843
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vulnerable software:
Serv-U FTP Server
Serv-U MFT Server
Software vendor:
SolarWinds

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a type confusion error. A remote attacker can pass specially crafted data to the application, trigger a type confusion error and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.


Remediation

Install updates from vendor's website.

External links