CVE-2022-43667 Memory corruption in CX-Programmer

High 7.8 Published 7 Dec 2022 Updated 23 Apr 2025

A stack-based buffer overflow in OMRON CX-Programmer allows arbitrary code execution or information disclosure when a user opens a malicious CXP file.

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-2022-43667?

CVE-2022-43667 is a high-severity memory corruption vulnerability in OMRON Corporation CX-Programmer, published on 7 Dec 2022. 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

Stack-based buffer overflow vulnerability exists in CX-Programmer v.9.77 and earlier, which may lead to information disclosure and/or arbitrary code execution by having a user to open a specially crafted CXP file.

Weakness: CWE-787

Which versions are affected by CVE-2022-43667?

It affects 1 product.

Products include Omron Cx-Programmer.

How do I fix CVE-2022-43667?

No fix has been published for CVE-2022-43667 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-2022-43667 being exploited?

There is no known exploitation of CVE-2022-43667 in the wild and no public exploit code.

Sources

Also known as GHSA-3259-r88x-8729.