CVE-2025-5049 FreeFloat FTP Server APPEND Command buffer overflow

Medium 6.9 Published Updated

Remote attackers can exploit a buffer overflow in the APPEND command handler of FreeFloat FTP Server to execute arbitrary code or cause denial of service.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2025-5049?

CVE-2025-5049 is a medium-severity memory corruption vulnerability in FreeFloat FTP Server, published on 21 May 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A vulnerability was found in FreeFloat FTP Server 1.0. It has been declared as critical. This vulnerability affects unknown code of the component APPEND Command Handler. The manipulation leads to buffer overflow. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used.

Weakness: CWE-120, CWE-119

Which versions are affected by CVE-2025-5049?

It affects 1 product.

Products include Freefloat Freefloat Ftp Server.

How do I fix CVE-2025-5049?

No fix has been published for CVE-2025-5049 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-2025-5049 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-5049 exists.

Sources

Also known as GHSA-hp89-xxh7-4ph4.

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