Rockwell Automation MicroLogix 1100 & 1400 Vulnerable to Cross-Site Scripting Attack

Description

Rockwell Automation was made aware of a vulnerability by a security researcher from Georgia Institute of Technology that the MicroLogix 1100 and 1400 controllers contain a vulnerability that may give an attacker the ability to accomplish remote code execution.  The vulnerability is an unauthenticated stored cross-site scripting vulnerability in the embedded webserver. The payload is transferred to the controller over SNMP and is rendered on the homepage of the embedded website.

Timeline

Scores

EPSS (exploitation in 30 days)

0.58% · top 52% of all CVEs (7 Nov 2026)

CISA SSVC

Exploitation: none · Automatable: no · Technical impact: partial

The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.1.

Weakness

• CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') (opens in a new tab)All about CWE-79 and its CVEs

Affected products

• Rockwell Automation · MicroLogix 1100 & 1400 Controllers

  • affected All

• Rockwell Automation · MicroLogix 1400-B/C

  • affected 21.007 and below

• Rockwell Automation · MicroLogix 1400-A

  • affected 7.000 and below

References (1)

• https://rockwellautomation.custhelp.com/app/answers/answer_view/a_id/1137679 (opens in a new tab)x_transferred

Sources

The same CVE in the primary databases and aggregators, to check against.

• CVE.org record (opens in a new tab)
• CVE List JSON (GitHub) (opens in a new tab)
• NVD (opens in a new tab)
• FIRST EPSS (opens in a new tab)
• OSV.dev (opens in a new tab)
• GitHub Advisories (opens in a new tab)
• CIRCL Vulnerability-Lookup (opens in a new tab)

Badge for a README or a ticket

[![CVE-2022-46670](https://trackcve.app/badge/CVE-2022-46670.svg)](https://trackcve.app/cve/CVE-2022-46670)

Record last updated 17 Apr 2025, 14:35 UTC.