CVE-2021-27413 Memory corruption in Omron CX-One

High 7.8 Published 13 May 2021 Updated 3 Aug 2024

A stack-based buffer overflow in Omron CX-One allows attackers to execute arbitrary code, posing a significant risk to industrial control system users.

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-2021-27413?

CVE-2021-27413 is a high-severity memory corruption vulnerability in Omron CX-One, published on 13 May 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

Omron CX-One Versions 4.60 and prior, including CX-Server Versions 5.0.29.0 and prior, are vulnerable to a stack-based buffer overflow, which may allow an attacker to execute arbitrary code.

Weakness: CWE-787, CWE-121

Which versions are affected by CVE-2021-27413?

It affects 2 products.

Products include Omron Cx-One, Omron Cx-Server.

How do I fix CVE-2021-27413?

No fix has been published for CVE-2021-27413 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-2021-27413 being exploited?

There is no known exploitation of CVE-2021-27413 in the wild and no public exploit code.

Sources

Also known as GHSA-j3pj-94ww-qq3j.