Serial number: AV26–417 Date: May 4, 2026 Between April 27 and May 3, 2026, CISA published ICS advisories to address vulnerabilities in the following products: ABB AWIN Gateways – multiple firmware versions ABB Ability OPTIMAX – multiple versions and models ABB Ability Symphony Plus Engineering – multiple versions and models ABB Edgenius Management Portal – versions 3.2.0.0 and 3.2.1.1 ABB PCM600 – versions 1.5 to 2.13 ABB System 800xA, Symphony Plus IEC 61850 – multiple firmware versions NSA GR
