CVE-2021-38434 FATEK Automation WinProladder

High 7.8 Published 18 Oct 2021 Updated 16 Sep 2024

Attackers can execute arbitrary code by tricking users into opening malicious project files in FATEK WinProladder due to improper sign extension handling.

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-2021-38434?

CVE-2021-38434 is a high-severity vulnerability in FATEK Automation WinProladder, published on 18 Oct 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 Automation WinProladder versions 3.30 and prior lacks proper validation of user-supplied data when parsing project files, which could result in an unexpected sign extension. An attacker could leverage this vulnerability to execute arbitrary code.

Weakness: CWE-194

Which versions are affected by CVE-2021-38434?

It affects 1 product.

Products include Fatek Winproladder.

How do I fix CVE-2021-38434?

No fix has been published for CVE-2021-38434 yet. Limit exposure of the affected software until one is available.

Is CVE-2021-38434 being exploited?

There is no known exploitation of CVE-2021-38434 in the wild and no public exploit code.

Sources

Also known as GHSA-rq4p-mwvq-fhvq.