CVE-2022-43509 Memory corruption in CX-Programmer

High 7.8 Published 7 Dec 2022 Updated 23 Apr 2025

An attacker can achieve arbitrary code execution or information disclosure by tricking a user into opening a malicious CXP file in OMRON CX-Programmer.

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-2022-43509?

CVE-2022-43509 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

Out-of-bounds write 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-2022-43509?

It affects 1 product.

Products include Omron Cx-Programmer.

How do I fix CVE-2022-43509?

No fix has been published for CVE-2022-43509 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-2022-43509 being exploited?

There is no known exploitation of CVE-2022-43509 in the wild and no public exploit code.

Sources

Also known as GHSA-3c7v-3xg2-5hhf.