CVE-2010-20034

high

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.

References

https://www.vulncheck.com/advisories/gekko-manager-ftp-client-stack-buffer-overflow

https://www.gekkomanager.com/

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

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

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

Details

Source: Mitre, NVD

Published: 2025-08-21

Updated: 2026-04-15

Risk Information

CVSS v2

Base Score: 7.5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

Severity: High

CVSS v3

Base Score: 9.8

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Severity: Critical

CVSS v4

Base Score: 8.5

Vector: 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

Severity: High

EPSS

EPSS: 0.00476