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CVE-2026-19472— Rockwell Automation ArmorStart® LT Denial Of Service

Quick assessment

Affected
Rockwell Automation ArmorStart® LT
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Rockwell Automation ArmorStart® LT是美国Rockwell Automation基金会的一款工业电机启动控制装置。 Rockwell Automation ArmorStart® LT 2.001及之前版本存在资源管理错误漏洞，该漏洞源于对发送至嵌入式Web服务器的特制HTTP PUT请求处理不当，可能导致Web服务器可用性丧失。

CVSS 8.7 · High EPSS 0.32% · P23

Affected Version Matrix 1

VendorProduct Version RangeStatus
Rockwell Automation ArmorStart® LT v2.001 and below affected
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I. Basic Information for CVE-2026-19472

Vulnerability Information
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Vulnerability Title
Rockwell Automation ArmorStart® LT Denial Of Service
Source: CVE Program / CVE List V5
Vulnerability 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
Source: CVE Program / CVE List V5
CVSS Information
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
Source: CVE Program / CVE List V5
Vulnerability Type
不加限制或调节的资源分配
Source: CVE Program / CVE List V5
Vulnerability Title
Rockwell Automation ArmorStart® LT 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Rockwell Automation ArmorStart® LT是美国Rockwell Automation基金会的一款工业电机启动控制装置。 Rockwell Automation ArmorStart® LT 2.001及之前版本存在资源管理错误漏洞，该漏洞源于对发送至嵌入式Web服务器的特制HTTP PUT请求处理不当，可能导致Web服务器可用性丧失。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Rockwell Automation ArmorStart® LT v2.001 and below -

II. Public POCs for CVE-2026-19472

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III. Intelligence Information for CVE-2026-19472

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Vendor Advisories for CVE-2026-19472 (1)

Same Patch Batch · Rockwell Automation · 2026-09-01 · 16 CVEs total

CVE-2026-9621 9.2 CRITICAL RSLinx Classic® - Multiple Vulnerabilities
CVE-2026-84235 8.7 HIGH Rockwell Automation 1756-ENBT Denial of Service Vulnerability
CVE-2026-9637 8.7 HIGH CompactLogix® 5380 / ControlLogix® 5580 - Multiple Vulnerabilities
CVE-2026-9622 8.7 HIGH RSLinx Classic® - Multiple Vulnerabilities
CVE-2026-9625 8.7 HIGH RSLinx Classic® - Multiple Vulnerabilities
CVE-2026-9624 8.7 HIGH RSLinx Classic® - Multiple Vulnerabilities
CVE-2024-7952 8.7 HIGH DataEdgePlatform DataMosaix™ Private Cloud
CVE-2024-7953 8.7 HIGH DataEdgePlatform DataMosaix™ Private Cloud
CVE-2025-12768 8.6 HIGH FactoryTalk® Historian Machine Edition - Out-of-Bounds Write Vulnerability
CVE-2026-16675 8.5 HIGH Rockwell Automation FactoryTalk® Activation Manager - Privilege Escalation
CVE-2026-12663 7.0 HIGH ControlFLASH ® – Improper Access Control
CVE-2026-9633 7.0 HIGH Redundancy Module Configuration Tool - Multiple Vulnerabilities
CVE-2026-9634 7.0 HIGH Redundancy Module Configuration Tool - Multiple Vulnerabilities
CVE-2026-19471 6.9 MEDIUM Rockwell Automation ArmorStart® LT Stored Cross-site scripting
CVE-2026-12661 4.8 MEDIUM FactoryTalk® Historian Machine Edition - Out-of-Bounds Write Vulnerability

IV. Related Vulnerabilities

Same product: ArmorStart® LT
Same vendor: Rockwell Automation
Same weakness: CWE-770

V. Comments for CVE-2026-19472

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