CVE-2010-20122
Severity CVSS v4.0:
CRITICAL
Type:
CWE-121
Stack-based Buffer Overflow
Publication date:
21/08/2025
Last modified:
22/08/2025
Description
Xftp FTP Client version up to and including 3.0 (build 0238) contain a stack-based buffer overflow vulnerability triggered by a maliciously crafted PWD response from an FTP server. When the client connects to a server and receives an overly long directory string in response to the PWD command, the client fails to properly validate the length of the input before copying it into a fixed-size buffer. This results in memory corruption and allows remote attackers to execute arbitrary code on the client system.
Impact
Base Score 4.0
9.30
Severity 4.0
CRITICAL
References to Advisories, Solutions, and Tools
- https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/windows/ftp/xftp_client_pwd.rb
- https://web.archive.org/web/20090312072219/http://www.netsarang.com/download/down_xft3.html
- https://www.exploit-db.com/exploits/12332
- https://www.exploit-db.com/exploits/16739
- https://www.vulncheck.com/advisories/xftp-ftp-client-pwd-response-buffer-overflow