CVE-2010-20049
LeapFTP <3.1.x - Buffer Overflow
Title source: llmDescription
LeapFTP < 3.1.x contains a stack-based buffer overflow vulnerability in its FTP client parser. When the client receives a directory listing containing a filename longer than 528 bytes, the application fails to properly bound-check the input and overwrites the Structured Exception Handler (SEH) chain. This allows an attacker operating a malicious FTP server to execute arbitrary code on the victim’s machine when the file is listed or downloaded.
Exploits (2)
exploitdb
WORKING POC
VERIFIED
by Metasploit · rubyremotewindows
https://www.exploit-db.com/exploits/16704
metasploit
WORKING POC
GOOD
rubypocwin
https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/windows/ftp/leapftp_list_reply.rb
References (5)
Scores
EPSS
0.5013
EPSS Percentile
97.8%
Classification
CWE
CWE-121
Status
draft
Timeline
Published
Aug 20, 2025
Tracked Since
Feb 18, 2026