CVE-2010-20034

HIGH

Gekko Manager FTP Client <= 0.77 - Buffer Overflow

Title source: llm

Description

Gekko Manager FTP Client <= 0.77 contains a stack-based buffer overflow in its FTP directory listing parser. When processing a server response to a LIST command, the client fails to properly validate the length of filenames. A crafted response containing an overly long filename can overwrite the Structured Exception Handler (SEH), potentially allowing remote code execution.

Exploits (2)

exploitdb WORKING POC VERIFIED

by Metasploit · rubyremotewindows

https://www.exploit-db.com/exploits/16728

View Code ZIP pw:eip

metasploit WORKING POC GOOD

by nullthreat · rubypocwin

https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/windows/ftp/gekkomgr_list_reply.rb

View Code ZIP pw:eip

References (5)

[Various Sources] https://www.gekkomanager.com/

[Third Party Advisory] https://www.vulncheck.com/advisories/gekko-manager-ftp-client-stack-buffer-overflow

[Various Sources] https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/windows/ftp/gekkomgr_list_reply.rb

[Exploit, Third Party Advisory] https://www.exploit-db.com/exploits/16728

[Various Sources] https://web.archive.org/web/20111016194057/https://www.corelan.be/index.php/2010/10/12/death-of-an-ftp-client/

Scores

CVSS v4 8.5

EPSS 0.1996

EPSS Percentile 95.5%

CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

CISA SSVC

Vulnrichment

Exploitation poc

Automatable no

Technical Impact total

Details

CWE

CWE-121

Status published

Products (1)

New Software S.C./Gekko Manager FTP Client < 0.77

Published Aug 21, 2025

Tracked Since Feb 18, 2026