What is GHSA-m5fq-q49w-wc2j?

GHSA-m5fq-q49w-wc2j is a security advisory published by GitHub Security Advisories with High severity. Rockwell Automation MicroLogix 1100, all versions, allows a remote, unauthenticated attacker...

Which CVE IDs does GHSA-m5fq-q49w-wc2j cover?

GHSA-m5fq-q49w-wc2j covers the following CVE IDs: CVE-2021-33012. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-m5fq-q49w-wc2j?

GHSA-m5fq-q49w-wc2j has a CVSS v3 base score of 8.6, published by GitHub Security Advisories.

GHSA-m5fq-q49w-wc2jHighCVSS 8.6

Rockwell Automation MicroLogix 1100, all versions, allows a remote, unauthenticated attacker...

Vendor

GitHub Security Advisories

Published

May 24, 2022

Last Modified

June 3, 2026

🔗 CVE IDs covered (1)

CVE-2021-33012 →

📋 Description

Rockwell Automation MicroLogix 1100, all versions, allows a remote, unauthenticated attacker sending specially crafted commands to cause the PLC to fault when the controller is switched to RUN mode, which results in a denial-of-service condition. If successfully exploited, this vulnerability will cause the controller to fault whenever the controller is switched to RUN mode.

🔗 References (3)

https://nvd.nist.gov/vuln/detail/CVE-2021-33012
https://us-cert.cisa.gov/ics/advisories/icsa-21-189-01
https://github.com/advisories/GHSA-m5fq-q49w-wc2j