CVE-2024-5990 ThinManager® ThinServer™ Improper Input Validation Vulnerability

High 8.7 Published 25 Jun 2024 Updated 27 Aug 2025

An unauthenticated attacker can cause a denial-of-service condition on Rockwell Automation ThinServer by sending a malicious message to a monitor thread.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2024-5990?

CVE-2024-5990 is a high-severity denial of service vulnerability in Rockwell Automation ThinManager® ThinServer™, published on 25 Jun 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Due to an improper input validation, an unauthenticated threat actor can send a malicious message to a monitor thread within Rockwell Automation ThinServer™ and cause a denial-of-service condition on the affected device.

Weakness: CWE-20

Which versions are affected by CVE-2024-5990?

It affects 2 products.

Products include Rockwellautomation Thinmanager, Rockwellautomation Thinserver.

How do I fix CVE-2024-5990?

No fix has been published for CVE-2024-5990 yet. Limit exposure of the affected software until one is available.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2024-5990 being exploited?

There is no known exploitation of CVE-2024-5990 in the wild and no public exploit code.

Sources

Also known as GHSA-hfr5-33pv-p28w.