CVE-2010-20007 Seagull FTP v3.3 Build 409 Stack Buffer Overflow

High 8.5 Published Updated

Remote attackers can execute arbitrary code on Seagull FTP Client systems via a stack buffer overflow in the FTP directory listing parser.

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-2010-20007?

CVE-2010-20007 is a high-severity memory corruption vulnerability in Rocket Software Seagull 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

Seagull FTP Client <= v3.3 Build 409 contains a stack-based buffer overflow vulnerability in its FTP directory listing parser. When the client connects to an FTP server and receives a crafted response to a LIST command containing an excessively long filename, the application fails to properly validate input length, resulting in a buffer overflow that overwrites the Structured Exception Handler (SEH). This may allow remote attackers to execute arbitrary code on the client system. This product line was discontinued and users were advised to use BlueZone Secure FTP instead, at the time of disclosure.

Weakness: CWE-121

Which versions are affected by CVE-2010-20007?

How do I fix CVE-2010-20007?

No fix has been published for CVE-2010-20007 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-2010-20007 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2010-20007 exists.

Public exploit code: 1 Metasploit module.

Sources

Also known as GHSA-gfwh-g6qc-3p4p.

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