CVE-2025-5665 FreeFloat FTP Server XCWD Command buffer overflow

Medium 6.9 Published Updated

Remote attackers can exploit a buffer overflow in the XCWD 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-2025-5665?

CVE-2025-5665 is a medium-severity memory corruption vulnerability in FreeFloat FTP Server, published on 5 Jun 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 classified as critical. Affected is an unknown function of the component XCWD Command Handler. The manipulation leads to buffer overflow. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used.

Weakness: CWE-120, CWE-119

Which versions are affected by CVE-2025-5665?

It affects 1 product.

Products include Freefloat Freefloat Ftp Server.

How do I fix CVE-2025-5665?

No fix has been published for CVE-2025-5665 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-2025-5665 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-5665 exists.

Sources

Also known as GHSA-pq63-hp83-c5hf.

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