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CVE-2021-33012
Published: Jul 9, 2021
Modified: Jun 3, 2026
PUBLISHED
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.
| Vendor | Product | Versions |
|---|---|---|
n/a | Rockwell Automation MicroLogix 1100 | affected All Versions |
Weaknesses (CWE)
References
https://us-cert.cisa.gov/ics/advisories/icsa-21-189-01
x_refsource_MISC
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