Rockwell Automation ArmorStart LT

September 3, 2026·Source: CISA

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TL;DR

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 encourages all users to update to the newest version. Mitigation Users of the affected software who are not able to upgrade to one of the corrected versions should follow Rockwell Automation's security best practices. https://support.rockwellautomation.com/app/answers/answer_view/a_id/1085012/loc/en_US#__highlight Mitigation For more information on this issue, see the Rockwell Automation security advisory at: https://www.rockwellautomation.com/en-us/trust-center/security-advisories.html https://www.rockwellautomation.com/en-us/trust-center/security-advisories.html Relevant CWE: CWE-79 Improper Neutralization of Input Dur

What Happened

Rockwell Automation ArmorStart LT, reported by CISA.

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

For the full technical details, see the original report.

Why It Matters for Businesses

This development could affect organizations that rely on the impacted technologies or services. Unpatched systems, misconfigured infrastructure, or lack of monitoring can leave businesses exposed to exploitation, data breaches, and regulatory penalties.

How to Check Your Exposure

Run a free scan on NEL Professional's Cyber Risk Scanner to check whether your domain is affected. The scan covers SSL/TLS, security headers, DNS configuration, email authentication, and more across 16 modules.

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Mitigation Steps

Patch immediately, Apply vendor patches or updates as soon as they are available.
Review configurations, Check firewall rules, access controls, and security headers.
Monitor logs, Watch for indicators of compromise (IOCs) related to this threat.
Update security policies, Ensure incident response plans cover this type of threat.
Run a security scan, Use automated tools to verify your exposure.

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