CVE-2021-27475: Rockwellautomation Connected Components Workbench

High severity, CVSS 8.6. EPSS: 3% chance of exploitation in the next 30 days.

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.

Affected products

• Rockwellautomation Connected Components Workbench: up to and including 12.00.00

Published 2022-03-23. Last modified 2026-06-17.