CVE-2026-19472: Rockwell Automation Armorstart Lt

High severity, CVSS 8.7. EPSS: 0.3% chance of exploitation in the next 30 days.

A denial-of-service security issue exists within ArmorStart® LT. The security issue stems from improper handling of a crafted HTTP PUT request sent to the embedded web server. This can result in a loss of web server availability

Affected products

• Rockwell Automation Armorstart Lt: up to and including v2.001

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