Hitachi Virtual Storage Platform EUVD-2025-209711

Apply the vendor-released firmware patches immediately for your storage platform series: DKCMAIN version 88-08-16 or later with GUM version 88-08-20 or later for G-series and F-series platforms; DKCMAIN version 93-07-26 or later with GUM version 93-07-26 or later for E-series platforms; DKCMAIN version A3-04-02 or later with EMS version A3-04-02 or later, or DKCMAIN A3-03-41 or later with EMS A3-03-41 or later for One Block platforms. Before patching, implement compensating controls: restrict network access to storage management interfaces (GUM/EMS ports) using firewall rules to allow only trusted administrative IP ranges; disable or block remote authentication endpoints if local-only administration is feasible; implement external rate-limiting and account lockout policies at the network perimeter (WAF or authentication proxy) if the storage platform does not provide sufficient internal controls. Monitor authentication logs for repeated failed login attempts across all models to detect active exploitation. Coordinate patching carefully in production environments following Hitachi's maintenance windows, as firmware updates to storage arrays require careful scheduling.