High severity · published Sep 1, 2026
CVE-2026-19472
Rockwell Automation ArmorStart® LT Denial Of Service
8.7
CVSS
0.5%
EPSS
No
On KEV
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
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 43% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AL
ArmorStart® LT · Rockwell Automation
v2.001 and below · source: vendor
In the news
VulnerabilityHigh
Rockwell Automation ArmorStart LT
View CSAF Summary Successful exploitation of these vulnerabilities could result in a loss of webserver availability or allow an attacker to inject malicious scripts that will be executed when other users access the affected page. The following versions of Rockwell Automation ArmorStart LT are affected: ArmorStart LT <=v2.001 (CVE-2026-19471, CVE-2026-19472) CVSS Vendor Equipment Vulnerabilities v3 7.5 Rockwell Automation Rockwell Automation ArmorStart LT Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting'), Allocation of Resources Without Limits or Throttling Background Critical Infrastructure Sectors: Critical Manufacturing Countries/Areas Deployed: Worldwide Company Headquarters Location: United States Vulnerabilities Expand All + CVE-2026-19471 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. View CVE Details Affected Products Rockwell Automation ArmorStart LT Vendor: Rockwell Automation Product Version: Rockwell Automation ArmorStart LT: <=v2.001 Product Status: known_affected Remediations Mitigation Rockwell Automation has corrected this issue in firmware version v2.002, and en...
Sep 3, 2026·CISA Advisories
Affected product
AL
ArmorStart® LT
Rockwell Automation
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