High severity7.5NVD Advisory· Published Dec 16, 2022· Updated Jun 17, 2026
CVE-2022-3166
CVE-2022-3166
Description
Rockwell Automation was made aware that the webservers of the Micrologix 1100 and 1400 controllers contain a vulnerability that may lead to a denial-of-service condition. The security vulnerability could be exploited by an attacker with network access to the affected systems by sending TCP packets to webserver and closing it abruptly which would cause a denial-of-service condition for the web server application on the device
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Affected products
7cpe:2.3:o:rockwellautomation:micrologix_1100_firmware:-:*:*:*:*:*:*:*+ 2 more
- cpe:2.3:o:rockwellautomation:micrologix_1100_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:rockwellautomation:micrologix_1400_firmware:-:*:*:*:*:*:*:*
- (no CPE)range: 21.007 and below
All+ 1 more
- (no CPE)range: All
- (no CPE)range: 7.000 and below
Patches
Vulnerability mechanics
References
1- rockwellautomation.custhelp.com/app/answers/answer_view/a_id/1137678nvdPermissions RequiredVendor Advisory
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