CVE-2026-19472 PUBLISHED

Rockwell Automation ArmorStart® LT Denial Of Service

Assigner: Rockwell
Reserved: 10.08.2026 Published: 01.09.2026 Updated: 01.09.2026

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

Metrics

CVSS 4.0

CVSS 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
CVSS Score: 8.7

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	None	Confidentiality	None
Attack Complexity	Low	Integrity	None	Integrity	None
Attack Requirements	None	Availability	High	Availability	None
Privileges Required	None
User Interaction	None

CVSS 4.0

Product Status

Vendor	Rockwell Automation
Product	ArmorStart® LT
Versions	Default: unaffected Version v2.001 and below is affected

Solutions

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

References

https://www.rockwellautomation.com/en-us/trust-center/security-advisories/advisory.SD1797.html

Problem Types

CWE-770 Allocation of resources without limits or throttling CWE