CVE-2025-5637 PCMan FTP Server SYSTEM Command buffer overflow
Remote attackers can exploit a buffer overflow in the SYSTEM command handler of PCMan FTP Server to execute arbitrary code.
- 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-2025-5637?
CVE-2025-5637 is a medium-severity memory corruption vulnerability in Pcman 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, which was classified as critical, was found in PCMan FTP Server 2.0.7. Affected is an unknown function of the component SYSTEM 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.
Which versions are affected by CVE-2025-5637?
It affects 1 product.
Products include Pcman Ftp Server.
How do I fix CVE-2025-5637?
No fix has been published for CVE-2025-5637 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-2025-5637 being exploited?
There is no known exploitation of CVE-2025-5637 in the wild and no public exploit code.
Other vulnerabilities in Pcman Ftp Server
Sources
Also known as GHSA-f9cw-8g68-pfqj.