CVE-2020-37029 FTPDummy 4.80 - Local Buffer Overflow
Attackers can execute arbitrary code by tricking users into opening a malicious preference file in FTPDummy.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2020-37029?
CVE-2020-37029 is a high-severity memory corruption vulnerability in K.soft FTPDummy, published on 30 Jan 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
FTPDummy 4.80 contains a local buffer overflow vulnerability in its preference file handling that allows attackers to execute arbitrary code. Attackers can craft a malicious preference file with carefully constructed shellcode to trigger a structured exception handler overwrite and execute system commands.
Weakness: CWE-120
Which versions are affected by CVE-2020-37029?
How do I fix CVE-2020-37029?
No fix has been published for CVE-2020-37029 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-2020-37029 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2020-37029 exists.
Sources
Also known as GHSA-4pj4-p4gx-6rw5.