CVE-2026-19472

Rockwell Automation ArmorStart® LT Denial Of Service

Published Sep 1, 2026 CVSS 4.0 · 8.7 High EPSS < 1% KEV · Not listed
Description
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

Remediation

Vendor Solution

Upgrade to version   v2.002 https://compatibility.rockwellautomation.com/Pages/Downloads.aspx  or later.

Tracking

Sign in to view the affected projects.

Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Rockwellautomation
Rockwellautomation armorstart Lt
Vendors & Products Rockwellautomation
Rockwellautomation armorstart Lt
Type Values Removed Values Added
Description 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
Title Rockwell Automation ArmorStart® LT Denial Of Service
First Time appeared Rockwell Automation
Rockwell Automation armorstart Lt
Weaknesses CWE-770
CPEs cpe:2.3:a:rockwell_automation:armorstart_lt:v2.001_and_below:*:*:*:*:*:*:*
Vendors & Products Rockwell Automation
Rockwell Automation armorstart Lt
References
Metrics cvssV4_0

{'score': 8.7, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
Rockwell
Published
Updated
Sep 1, 2026, 3:41 PM
Reserved
Aug 10, 2026, 2:37 PM
Status
Awaiting Analysis
Published
Sep 1, 2026, 1:18 PM
Modified
Sep 1, 2026, 8:50 PM