CVE-2025-9124 Rockwell Automation Compact GuardLogix® 5370 Denial-Of-Service Vulnerability
Attackers can cause a major non-recoverable fault in Rockwell Compact GuardLogix 5370 controllers by sending crafted CIP messages.
- 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-2025-9124?
CVE-2025-9124 is a high-severity denial of service vulnerability in Rockwell Automation Compact GuardLogix® 5370, published on 14 Oct 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A denial-of-service security issue in the affected product. The security issue stems from a fault occurring when a crafted CIP unconnected explicit message is sent. This can result in a major non-recoverable fault.
Weakness: CWE-248
Which versions are affected by CVE-2025-9124?
How do I fix CVE-2025-9124?
No fix has been published for CVE-2025-9124 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-2025-9124 being exploited?
There is no known exploitation of CVE-2025-9124 in the wild and no public exploit code.
Sources
Also known as GHSA-98v9-3hq2-88q8.