CVE-2010-20122
CRITICALXftp FTP Client <3.0 (build 0238) - Buffer Overflow
Title source: llmDescription
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.
Exploits (3)
exploitdb
WORKING POC
VERIFIED
by Metasploit · rubyremotewindows
https://www.exploit-db.com/exploits/16739
exploitdb
WORKING POC
VERIFIED
by zombiefx · perlremotewindows
https://www.exploit-db.com/exploits/12332
metasploit
WORKING POC
NORMAL
by zombiefx, dookie · rubypocwin
https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/windows/ftp/xftp_client_pwd.rb
References (5)
Scores
CVSS v4
9.3
EPSS
0.5470
EPSS Percentile
98.0%
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Details
CWE
CWE-121
Status
published
Products (1)
NetSarang Computer, Inc./Xftp FTP Client
< 3.0 (build 0238)
Published
Aug 21, 2025
Tracked Since
Feb 18, 2026