Rockwell Automation ArmorStart LT: 2 CVEs, High 7.5
Summary
CISA reports 2 vulnerabilities in Rockwell Automation ArmorStart LT. Weakness types: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting'), Allocation of Resources Without Limits or Throttling. 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. Highest CVSS v3 score: 7.5 (High), exploitable over the network.
At a glance
- Vendor
- Rockwell Automation
- Products
- ArmorStart LT
- CVEs
- CVE-2026-19471, CVE-2026-19472
- Highest CVSS v3
- 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Highest CVSS v4
- –
- Known exploited (KEV)
- No CVE from this advisory is on the KEV list as of the last refresh
- Sectors (per CISA)
- Critical Manufacturing
- Deployed
- Worldwide
- Vendor HQ
- United States
Vulnerabilities
| CVE | Weakness | CVSS v3 | CVSS v4 | KEV | Description (from advisory) |
|---|---|---|---|---|---|
| CVE-2026-19471 | Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') | 7.3 | – | No | 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. |
| CVE-2026-19472 | Allocation of Resources Without Limits or Throttling | 7.5 | – | No | 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. |
Affected products (1)
- Rockwell Automation ArmorStart LT: <=v2.001
Vendor fixes and mitigations (from advisory)
- 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. link
- 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 link
Also apply CISA's standard ICS practices: minimize network exposure, keep control networks behind firewalls and isolated from business networks, and use up-to-date secure remote access.
Sources
This page is generated automatically from the CISA advisory text. It is not a substitute for the vendor's guidance; verify affected versions and fixes at the source before making changes to control systems.