CVE-2021-27475

Rockwell Automation Connected Components Workbench v12.00.00 and prior does not limit the objects that can be deserialized. This vulnerability allows attackers to craft a malicious serialized object that, if opened by a local user in Connected Components Workbench, may result in remote code execution. This vulnerability requires user interaction to be successfully exploited.

• CWE-502
• CWE-502

• https://rockwellautomation.custhelp.com/app/answers/answer_view/a_id/1131435Permissions Required, Vendor Advisory
• https://www.cisa.gov/uscert/ics/advisories/icsa-21-133-01Third Party Advisory, US Government Resource
• https://rockwellautomation.custhelp.com/app/answers/answer_view/a_id/1131435Permissions Required, Vendor Advisory
• https://www.cisa.gov/uscert/ics/advisories/icsa-21-133-01Third Party Advisory, US Government Resource

Published

Mar 23, 2022

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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