Rockwell Vulnerability Allowing Remote ICS Hacking Exploited in Attacks

CVE-2021-22681 — a cryptographic-key flaw in Rockwell Studio 5000 Logix Designer and Logix PLCs (CompactLogix, ControlLogix, DriveLogix, FlexLogix. CVEs: CVE-2021-22681.

Part of the PlainSec briefing for 2026-03-24

Sources

• SecurityWeek