CVE-2025-5547 FreeFloat FTP Server CDUP Command buffer overflow

Medium 6.9 Published Updated

Remote attackers can trigger a buffer overflow in the CDUP command handler of FreeFloat FTP Server, potentially leading to code execution or service disruption.

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-2025-5547?

CVE-2025-5547 is a medium-severity memory corruption vulnerability in FreeFloat FTP Server, published on 4 Jun 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A vulnerability, which was classified as critical, has been found in FreeFloat FTP Server 1.0. This issue affects some unknown processing of the component CDUP Command Handler. The manipulation leads to buffer overflow. The attack may 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-2025-5547?

It affects 1 product.

Products include Freefloat Freefloat Ftp Server.

How do I fix CVE-2025-5547?

No fix has been published for CVE-2025-5547 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-2025-5547 being exploited?

There is no known exploitation of CVE-2025-5547 in the wild and no public exploit code.

Sources

Also known as GHSA-38rq-w6h4-35pw.

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