Description

ProFTPD 1.3.7a contains a denial of service vulnerability that allows attackers to overwhelm the server by creating multiple simultaneous FTP connections. Attackers can repeatedly establish connections using threading to exhaust server connection limits and block legitimate user access.

INFO

Published Date :

2026-01-21T17:27:44.167Z

Last Modified :

2026-04-07T14:06:22.298Z

Source :

VulnCheck
AFFECTED PRODUCTS

The following products are affected by CVE-2021-47865 vulnerability.

Vendors Products
Proftpd
  • Proftpd
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2021-47865.

URL Resource
http://www.proftpd.org/ cve-icon cve-icon
https://github.com/proftpd/proftpd/issues/1298 cve-icon cve-icon
https://www.exploit-db.com/exploits/49697 cve-icon cve-icon
https://www.vulncheck.com/advisories/proftpd-a-remote-denial-of-service cve-icon cve-icon
Login to claim this CVE

CVSS Vulnerability Scoring System

Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
Attack Requirements
Privileges Required
User Interaction
VS Confidentiality
VS Integrity
VS Availability
SS Confidentiality
SS Integrity
SS Availability
Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact