CVE-2010-20034 Gekko Manager FTP Client <= 0.77 Stack Buffer Overflow
A stack buffer overflow in Gekko Manager FTP Client allows remote code execution via a crafted server response to a LIST command.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2010-20034?
CVE-2010-20034 is a high-severity memory corruption vulnerability in New Software S.C. Gekko Manager FTP Client, published on 21 Aug 2025. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official 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.
Weakness: CWE-121
Which versions are affected by CVE-2010-20034?
How do I fix CVE-2010-20034?
No fix has been published for CVE-2010-20034 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2010-20034 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2010-20034 exists.
Public exploit code: 1 Metasploit module.
Sources
Also known as GHSA-m2c3-87f6-6wg7.