CVE-2025-4253 PCMan FTP Server HASH Command buffer overflow
Remote attackers can exploit a buffer overflow in the HASH command handler of PCMan 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-2025-4253?
CVE-2025-4253 is a medium-severity memory corruption vulnerability in Pcman Ftp Server, published on 4 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 PCMan FTP Server 2.0.7. It has been declared as critical. Affected by this vulnerability is an unknown functionality of the component HASH Command Handler. The manipulation leads to buffer overflow. The attack can be launched remotely. The exploit has been disclosed to the public and may be used.
Which versions are affected by CVE-2025-4253?
It affects 1 product.
Products include Pcman Ftp Server.
How do I fix CVE-2025-4253?
No fix has been published for CVE-2025-4253 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-2025-4253 being exploited?
There is no known exploitation of CVE-2025-4253 in the wild and no public exploit code.
Other vulnerabilities in Pcman Ftp Server
Sources
Also known as GHSA-xfhf-5q2m-cx8p.