CVE-2026-84235: Rockwell Automation 1756-Enbt Module

High severity, CVSS 8.7. EPSS: 0.4% chance of exploitation in the next 30 days.

A denial-of-service security issue exists in the affected product. The security issue stems from a crafted CIP packet being sent crashing the module. The device requires a restart to recover.

Affected products

• Rockwell Automation 1756-Enbt Module: any version

Published 2026-09-01. Last modified 2026-09-01.