CVE-2025-5221 FreeFloat FTP Server QUOTE Command buffer overflow
Remote attackers can exploit a buffer overflow in the QUOTE 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-2025-5221?
CVE-2025-5221 is a medium-severity memory corruption vulnerability in FreeFloat FTP Server, published on 27 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 1.0.0. It has been classified as critical. This affects an unknown part of the component QUOTE Command Handler. The manipulation leads to buffer overflow. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used.
Which versions are affected by CVE-2025-5221?
It affects 1 product.
Products include Freefloat Freefloat Ftp Server.
How do I fix CVE-2025-5221?
No fix has been published for CVE-2025-5221 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-2025-5221 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-5221 exists.
Other vulnerabilities in FreeFloat FTP Server
Sources
Also known as GHSA-m3pr-pq46-qqph.