CVE-2010-20034

Gekko Manager FTP Client <= 0.77 Stack Buffer Overflow

CVSS 8.5 HIGHEPSS 0.5%CWE-121

Vexday Risk Score

36Attention

SSVC decision (CISA)

Attend

PoC available → attend closely

CVSS 8.5EPSS 0.5%KEV nãoPoC —Nuclei —Metasploit simPatch —

Lifecycle

12 Oct 2010Metasploit module available

21 Aug 2025Published on NVD

Recommendation: Plan a near-term fix — a public PoC already exists.

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.

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

Affected products

New Software S.C. · Gekko Manager FTP Client

References

https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/windows/ftp/gekkomgr_list_reply.rb https://web.archive.org/web/20111016194057/https://www.corelan.be/index.php/2010/10/12/death-of-an-ftp-client/https://www.exploit-db.com/exploits/16728 https://www.gekkomanager.com/https://www.vulncheck.com/advisories/gekko-manager-ftp-client-stack-buffer-overflow