CVE-2021-33012
High
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.
SeverityHigh
CVSS8.6
Exploit probability—
ProductRockwellautomation Micrologix 1100 Firmware
PublishedJul 9, 2021
First seenJul 9, 2021
Weakness typeCWE-20Improper input validation
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| rockwellautomation micrologix_1100_firmware | No range specified | — |
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