[Control systems] ABB security advisory (AV26-303)

Serial number: AV26-303
Date: March 31, 2026

On March 31, 2026, ABB published a security advisory to address vulnerabilities in the following product:

• ABB 800xA History – version 7.0 and prior
• ABB Batch Management – version 6.2 and prior
• ABB Production Response Batch History – version 6.2 and prior
• ABB 800xA for Symphony Plus Harmony – version 6.2 and prior
• ABB 800xA for AC 870P Melody – version 6.2 and prior
• ABB Application Change Management – version 6.2 and prior

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

• System 800xA affected by 3rd party component Vulnerabilities (PDF)
• ABB Cyber security alerts and notifications