[Control systems] CISA ICS security advisories (AV26–441)

Serial number: AV26–441
Date: May 11, 2026

Between May 4 and 10, 2026, CISA published ICS advisories to address vulnerabilities in the following products:

• ABB B&R Automation Runtime – versions prior to 6.5 and prior to R4.93
• ABB B&R Automation Studio – versions prior to 6.5
• ABB B&R PVI – versions prior to 6.5.0
• Hitachi Energy PCM600 – multiple versions
• Johnson Controls CEM AC2000 – versions 12.0, 11.0 and 10.6
• MAXHUB Pivot Client Application – versions prior to v1.36.2

The Cyber Centre encourages users and administrators to review the provided web link, perform the suggested mitigations and apply the necessary updates if available.

• CISA ICS Advisories