
CVSS 9.4 Flaws in Subnet Solutions PowerSYSTEM Center Threaten Energy and Critical Manufacturing ICS Networks
In November 2026, CISA published ICS Advisory ICSA-26-307-01 disclosing two critical vulnerabilities (CVE-2026-63017 and CVE-2026-63774) in Subnet Solutions PowerSYSTEM Center, an industrial control system platform widely deployed in critical manufacturing and energy sectors worldwide. CVE-2026-63017, rated CVSS 9.4, allows a low-privileged authenticated user to access administrator-restricted resources via incorrect authorization (CWE-863). CVE-2026-63774, also rated CVSS 9.4, enables authenticated users to execute unauthorized SQL commands through the report designer due to insufficient input validation (CWE-89). Both vulnerabilities require adjacent network access and affect versions spanning the 2020, 2024, and 2026 product lines. Successful exploitation could expose sensitive operational data, manipulate ICS database records, and disrupt energy grid management functions. These vulnerabilities are significant because they target ICS/OT environments in energy and critical manufacturing—sectors already under elevated threat from nation-state and ransomware actors. The combination of privilege escalation and SQL injection within a single OT platform dramatically lowers the bar for insider threats and lateral movement, reflecting a broader trend of attackers targeting operational technology management layers rather than field devices alone.
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