CVE-2026-9307

A sensitive information disclosure security issue exists within the affected CompactLogix controllers. The controller's web server exposes CIP Connection IDs on the diagnostics webpage, which are accessible to any unauthenticated user on the network. This information can be leveraged by an attacker to construct malicious packets, leading to Denial-of-Service.

Score

CVSS 4.0 6.3 Medium

Status

Awaiting Analysis - PSIRT@rockwellautomation.com

Published

2026-06-16

Last modified

2026-10-25

Weaknesses

CWE-497

Affected products

• Compactlogix 5370 (Rockwell Automation)

References

• https://www.rockwellautomation.com/en-us/trust-center/security-advisories/advisory.SD1776.html