CVE-2021-4432

Name: CVE-2021-4432
Creator: NVD / NIST
Published: 2024-01-16T15:15:08.28+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 1.32%

Last modified Jun 17, 2026

CVE-2021-4432 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. A vulnerability was found in PCMan FTP Server 2.0.7. It has been classified as problematic. EPSS estimates a 1.32% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1

7.5/10

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

EPSS Probability

1.32%

67.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-404

Affected Software

Vendor	Product	Versions
Pcman Ftp Server Project	Pcman Ftp Server	2.0.7

References

https://0day.today/exploit/description/36412Exploit, Third Party Advisory
https://packetstormsecurity.com/files/163104/PCMan-FTP-Server-2.0.7-Denial-Of-Service.htmlExploit, Third Party Advisory, VDB Entry
https://vuldb.com/?ctiid.250719Permissions Required, Third Party Advisory
https://vuldb.com/?id.250719Third Party Advisory
https://0day.today/exploit/description/36412Exploit, Third Party Advisory
https://packetstormsecurity.com/files/163104/PCMan-FTP-Server-2.0.7-Denial-Of-Service.htmlExploit, Third Party Advisory, VDB Entry
https://vuldb.com/?ctiid.250719Permissions Required, Third Party Advisory
https://vuldb.com/?id.250719Third Party Advisory

Timeline

Published: Jan 16, 2024
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-4432?

How severe is CVE-2021-4432?

CVE-2021-4432 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 1.32% probability of exploitation in the next 30 days.

How do I fix CVE-2021-4432?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-4432?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST