CVE-2021-43554 FATEK Automation WinProladder

High 7.8 Published 28 Dec 2021 Updated 16 Sep 2024

An out-of-bounds write in FATEK WinProladder allows attackers to execute arbitrary code via malicious project files.

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-2021-43554?

CVE-2021-43554 is a high-severity memory corruption vulnerability in FATEK Automation WinProladder, published on 28 Dec 2021. 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

FATEK WinProladder Versions 3.30_24518 and prior are vulnerable to an out-of-bounds write while processing project files, which may allow an attacker to execute arbitrary code.

Weakness: CWE-787

Which versions are affected by CVE-2021-43554?

It affects 1 product.

Products include Fatek Winproladder.

How do I fix CVE-2021-43554?

No fix has been published for CVE-2021-43554 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-2021-43554 being exploited?

There is no known exploitation of CVE-2021-43554 in the wild and no public exploit code.

Sources

Also known as GHSA-24wc-68mr-7mcq.