[Control systems] ABB security advisory (AV25-441)

Serial number: AV25-441
Date: July 22, 2025

On July 21, 2025, ABB published a security advisory to address a vulnerability in the following products:

• ABB Switch Actuator 4 DU – all versions
• ABB Switch actuator, door/light 4 DU – all versions

The Cyber Centre encourages users and administrators to review the provided web links and perform the suggested mitigations.

• ABB Cyber Security Advisory - Welcome 2 wire door opener actuator by default in compatibility mode – CVE-2025-7705
• ABB Cyber security alerts and notifications