CVE-2026-9128 Studio 5000 Logix Designer® – Multiple Vulnerabilities

High 7.3 Published 14 Jul 2026 Updated 14 Jul 2026

Attackers can execute arbitrary code by exploiting unquoted search paths in external tool configurations, requiring user interaction to run the application.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Local or same network only
Victim action needed: A user has to click or open something
Fix: None listed

What is CVE-2026-9128?

CVE-2026-9128 is a high-severity command injection vulnerability in Rockwell Automation Studio 5000 Logix Designer, published on 14 Jul 2026. 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

A code execution security issue exists within Studio 5000 Logix Designer® due to an unquoted search path in the External Tools configuration. The executable paths specified in the external tools configuration file are not properly quoted, and because these paths contain spaces, the operating system may resolve them to unintended executables placed earlier in the search order. If exploited, an attacker could plant a malicious executable in a location within the search path, resulting in arbitrary code execution with the same permissions of the user running the application.

Weakness: CWE-428

Which versions are affected by CVE-2026-9128?

It affects 1 product.

Products include Rockwellautomation Studio 5000 Logix Designer.

How do I fix CVE-2026-9128?

No fix has been published for CVE-2026-9128 yet. Limit exposure of the affected software until one is available.

Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.

Is CVE-2026-9128 being exploited?

There is no known exploitation of CVE-2026-9128 in the wild and no public exploit code.

Sources

Also known as GHSA-9425-qrrg-4g6q.