PT-2025-34289 · Easyftp Server · Easyftp Server

Published 2025-08-21 · Updated 2025-08-21 · CVE-2010-20121

NVD

CVSS v3.1

9.8

Critical

Base vector

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

EasyFTP Server versions up to 1.7.0.11 contain a stack-based buffer overflow vulnerability in the FTP command parser. When processing the CWD (Change Working Directory) command, the server fails to properly validate the length of the input string, allowing attackers to overwrite memory on the stack. This flaw enables remote code execution without authentication, as EasyFTP allows anonymous access by default. The vulnerability was resolved in version 1.7.0.12, after which the product was renamed “UplusFtp.”

Exploit

Fix

Stack Overflow

Weakness Enumeration

CWE-121

Related Identifiers

CVE-2010-20121

Affected Products

Easyftp Server

References · 9

• 🔥 https://exploit-db.com/exploits/16737 · Exploit
• 🔥 https://exploit-db.com/exploits/14402 · Exploit
• 🔥 https://exploit-db.com/exploits/12312 · Exploit
• 🔥 https://seclists.org/bugtraq/2010/Feb/202 · Exploit
• 🔥 https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/windows/ftp/easyftp_cwd_fixret.rb · Exploit
• 🔥 https://paulmakowski.wordpress.com/2010/02/28/increasing-payload-size-w-return-address-overwrite · Exploit
• 🔥 https://exploit-db.com/exploits/11668 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2010-20121 · Security Note
• https://vulncheck.com/advisories/easyftp-server-cwd-command-stack-buffer-overflow · Note