CVE-2017-12088: Rockwellautomation Micrologix 1400 B Firmware

High severity, CVSS 7.5. EPSS: 4.6% chance of exploitation in the next 30 days.

An exploitable denial of service vulnerability exists in the Ethernet functionality of the Allen Bradley Micrologix 1400 Series B FRN 21.2 and below. A specially crafted packet can cause a device power cycle resulting in a fault state and deletion of ladder logic. An attacker can send one unauthenticated packet to trigger this vulnerability

Affected products

• Rockwellautomation Micrologix 1400 B Firmware: up to and including 21.2

Published 2018-04-05. Last modified 2026-06-17.