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CVE-2026-19471

Rockwell Automation ArmorStart® LT Stored Cross-site scripting

Multiple stored cross-site scripting security issues exist within ArmorStart® LT. Stored XSS occurs when user input is not properly sanitized and is stored on the server, allowing an attacker to inject malicious scripts that will be executed when other users access the affected page.

CVSS 4.0 · 6.9 Medium EPSS < 1% KEV · Not listed
Vendors
Rockwell Automation Rockwellautomation
Products
Armorstart Lt Armorstart Lt
CVE-2026-19472

Rockwell Automation ArmorStart® LT Denial Of Service

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

CVSS 4.0 · 8.7 High EPSS < 1% KEV · Not listed
Vendors
Rockwell Automation Rockwellautomation
Products
Armorstart Lt Armorstart Lt
CVE-2025-9278

ArmorStart® LT - Multiple Denial-of-Service Vulnerabilities

A security issue exists within ArmorStart® LT that can result in a denial-of-service condition. After running a Burp Suite active scan, the device loses ICMP connectivity, causing the web application to become inaccessible.

CVSS 4.0 · 8.7 High EPSS < 1% KEV · Not listed
Vendors
Rockwellautomation
Products
Armorstart Lt Armorstart Lt Firmware
CVE-2025-9279

ArmorStart® LT - Multiple Denial-of-Service Vulnerabilities

A security issue exists within ArmorStart® LT that can result in a denial-of-service condition. During execution of the Achilles EtherNet/IP Step Limit Storm tests, the device reboots unexpectedly, causing the Link State Monitor to go down for several seconds.

CVSS 4.0 · 8.7 High EPSS < 1% KEV · Not listed
Vendors
Rockwellautomation
Products
Armorstart Lt Armorstart Lt Firmware
CVE-2025-9281

ArmorStart® LT - Multiple Denial-of-Service Vulnerabilities

A security issue exists within ArmorStart® LT that can result in a denial-of-service condition. During execution of the Achilles Comprehensive step limit storm tests, the device reboots

CVSS 4.0 · 8.7 High EPSS < 1% KEV · Not listed
Vendors
Rockwellautomation
Products
Armorstart Lt Armorstart Lt Firmware
CVE-2025-9280

ArmorStart® LT - Multiple Denial-of-Service Vulnerabilities

A security issue exists within ArmorStart® LT that can result in a denial-of-service condition. Fuzzing performed using Defensics causes the device to become unresponsive, requiring a reboot.

CVSS 4.0 · 8.7 High EPSS < 1% KEV · Not listed
Vendors
Rockwellautomation
Products
Armorstart Lt Armorstart Lt Firmware
CVE-2025-9282

ArmorStart® LT - Multiple Denial-of-Service Vulnerabilities

A security issue exists within ArmorStart® LT that can result in a denial-of-service condition. During execution of the Achilles Comprehensive limited storm tests, the device reboots unexpectedly, causing the Link State Monitor to go down for several seconds.

CVSS 4.0 · 8.7 High EPSS < 1% KEV · Not listed
Vendors
Rockwellautomation
Products
Armorstart Lt Armorstart Lt Firmware
CVE-2025-9283

ArmorStart® LT - Multiple Denial-of-Service Vulnerabilities

A security issue exists within ArmorStart® LT that can result in a denial-of-service condition. During execution of the Achilles EtherNet/IP Step Limits Storms tests, the device reboots unexpectedly, causing the Link State Monitor to go down for several seconds.

CVSS 4.0 · 8.7 High EPSS < 1% KEV · Not listed
Vendors
Rockwellautomation
Products
Armorstart Lt Armorstart Lt Firmware
CVE-2025-9464

Rockwell Automation ArmorStart® LT - Multiple Denial-of-Service Vulnerabilities

A security issue exists within ArmorStart® LT that can result in a denial-of-service condition. This vulnerability is triggered during fuzzing of multiple CIP classes, which causes the CIP port to become unresponsive.

CVSS 4.0 · 8.7 High EPSS < 1% KEV · Not listed
Vendors
Rockwellautomation
Products
Armorstart Lt Armorstart Lt Firmware
CVE-2025-9465

ArmorStart® LT - Multiple Denial-of-Service Vulnerabilities

A security issue exists within ArmorStart® LT that can result in a denial-of-service condition. During execution of the Achilles Comprehensive grammar tests, the device reboots unexpectedly, causing the Link State Monitor to go down for several seconds.

CVSS 4.0 · 8.7 High EPSS < 1% KEV · Not listed
Vendors
Rockwellautomation
Products
Armorstart Lt Armorstart Lt Firmware
CVE-2025-9466

ArmorStart® LT - Multiple Denial-of-Service Vulnerabilities

A security issue exists within ArmorStart® LT that can result in a denial-of-service condition. During execution of the Achilles EtherNet/IP and CIP grammar tests, the device reboots unexpectedly, causing the Link State Monitor to go down for several seconds.

CVSS 4.0 · 8.7 High EPSS < 1% KEV · Not listed
Vendors
Rockwellautomation
Products
Armorstart Lt Armorstart Lt Firmware