CISA has released an Industrial Controls Systems (ICS) advisory detailing multiple vulnerabilities affecting all versions of Honeywell Experion Process Knowledge System C200, C200E, C300, and ACE controllers. This advisory protects against an attacker using this vulnerabilities to take control of affected system.

For a complete description of the vulnerabilities and effected systems, visit:

• SECURITY NOTIFICATION SN 2021-02-22 01
• ICSA-21-278-04 Honeywell Experion and ACE Controllers

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