CVE-2018-25254 NICO-FTP 3.0.1.19 Buffer Overflow SEH

Critical 9.3 Published Updated

Remote attackers can execute arbitrary code on NICO-FTP servers by sending crafted FTP commands that trigger a buffer overflow.

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-2018-25254?

CVE-2018-25254 is a critical memory corruption vulnerability in NICO-FTP, published on 4 Apr 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

NICO-FTP 3.0.1.19 contains a structured exception handler buffer overflow vulnerability that allows remote attackers to execute arbitrary code by sending crafted FTP commands. Attackers can connect to the FTP service and send oversized data in response handlers to overwrite SEH pointers and redirect execution to injected shellcode.

Weakness: CWE-787

Which versions are affected by CVE-2018-25254?

It affects 1 product.

Products include Nico-Ftp Project Nico-Ftp.

How do I fix CVE-2018-25254?

No fix has been published for CVE-2018-25254 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-2018-25254 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2018-25254 exists.

Sources

Also known as GHSA-h75h-rrw3-xmq8.

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