[Control systems] ABB security advisory (AV26-664)

Serial number: AV26-664
Date: July 7, 2026

On July 6, 2026, ABB published a security advisory to address vulnerabilities in the following product:

• ABB Ability zenon – all versions
• APROL – versions prior to R 4.4-01P5

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

• ABB Ability zenon Remote Transport Vulnerability (PDF)
• Security Issues addressed in APROL R 4.4-01P5 (PDF)
• ABB Cyber security alerts and notifications