CVE-2025-11694 Rockwell Automation CompactLogix 5370 Controllers – Multiple Vulnerabilities
Attackers can cause denial of service on CompactLogix controllers by abusing exposed Connection IDs due to missing validation of sequence numbers and source IPs.
- 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-2025-11694?
CVE-2025-11694 is a high-severity missing authorization vulnerability in Rockwell Automation CompactLogix 5370, published on 16 Jun 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A security issue exists within 1769 CompactLogix controllers due to the missing validation of sequence numbers and source IP addresses in the CIP protocol. This allows attacker to abuse the exposed Connection ID’s visible on the web interface to perform denial-of-service attacks, resulting in a minor fault.
Weakness: CWE-354
Which versions are affected by CVE-2025-11694?
How do I fix CVE-2025-11694?
No fix has been published for CVE-2025-11694 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2025-11694 being exploited?
There is no known exploitation of CVE-2025-11694 in the wild and no public exploit code.
Sources
Also known as GHSA-9r9c-rxhr-5hcg.