CVE-2025-11694

High

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.

SeverityHigh
CVSS8.7
Exploit probability—
ProductCompactLogix 5370
PublishedJun 16, 2026
First seenJun 16, 2026
Weakness typeCWE-354CWE-354

How to fix

Sources list no fixed version or patch link for this vulnerability.

Affected products

ProductAffected versionsFixed in
Rockwell Automation CompactLogix 5370V36—

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