[Control systems] ABB security advisory (AV26-510)

Serial number: AV26-510
Date: May 26, 2026

On May 26, 2026, ABB published a security advisory to address a vulnerability in the following product:

• PPT30 Operating System – versions prior to 1.8.0

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

• PPT30 OPC-UA Server has issues handling concurrent connections (CVE-2025-11482) (PDF)
• ABB Cyber security alerts and notifications