CVE-2026-9854: Hitachienergy Microscada X SYS600

High severity, CVSS 7.8. EPSS: 0.1% chance of exploitation in the next 30 days.

A vulnerability exists in SYS600 RBAC mechanism where users having access to the engineering tools could elevate their privileges to administrator level on the underlying Windows host, granting themselves full control over the host machine.

Affected products

• Hitachienergy Microscada X SYS600: from 10.0, up to and including 10.7

Published 2026-09-03. Last modified 2026-09-09.