CVE-2021-4432 MEDIUM

CVE-2021-4432: PCMan FTP Server USER Command denial of service

Vendor Pcman
Product FTP Server
Weakness CWE-404
Published January 16, 2024
Last update June 17, 2025

CVSS base score

5.3/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality None
Integrity None

CVSS vector

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

What the vulnerability does

01Description

A vulnerability was found in PCMan FTP Server 2.0.7. It has been classified as problematic. This affects an unknown part of the component USER Command Handler. The manipulation leads to denial of service. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used. The associated identifier of this vulnerability is VDB-250719.

Key dates

02Disclosure timeline

January 16, 2024 CVE published
June 17, 2025 Record updated