CISA Warns Two Critical 9.0 Flaws in PowerSYSTEM Center Allow Unauthorized Access and SQL Injection

CISA warned that two critical PowerSYSTEM Center flaws (CVSS 9.0) could let authenticated users access administrator resources or execute unauthorized database commands, affecting energy and manufacturing sectors worldwide.

The agency released advisory ICSA-26-307-01 on November 3, 2026. CISA credited Chinmay Patel of Digital Boundary Group and Subnet Solutions with reporting the vulnerabilities.

The Canadian vendor has provided upgrade guidance and temporary measures for organizations that cannot immediately update affected systems.

The first flaw, CVE-2026-63017, involves incorrect authorization, tracked as CWE-863. A user with limited permissions can access resources normally reserved for administrators. In simple terms, signing in with a basic account does not keep the user within the access limits intended for that account.

CISA Warns Critical Flaws in PowerSYSTEM Center

The second flaw, CVE-2026-63774, is an SQL injection vulnerability tracked as CWE-89. Insufficient input checks in the report designer allow an authenticated user to execute unauthorized SQL commands. The disclosed impact concerns database commands, not confirmed operating system code execution.

Both CVSS vectors describe low attack complexity, low privileges, and no required user interaction. They specify an adjacent attack vector rather than unrestricted network access.

CISA states that these vulnerabilities are not remotely exploitable and that no known public exploitation had been reported when the advisory was released.

CVE-2026-63017 affects PowerSYSTEM Center 2020 versions through 5.29.x, PowerSYSTEM Center 2024 versions 6.0.x through 6.2.x, and PowerSYSTEM Center 2026 versions 7.0.x through 7.1.x. CVE-2026-63774 affects the listed 2024 and 2026 ranges. The advisory does not list the 2020 branch as affected by SQL injection.

Subnet Solutions recommends PowerSYSTEM Center 2020 Update 30 for affected 2020 installations. Organizations running the 2024 branch should upgrade to PowerSYSTEM Center 2026 Update 1.1. Existing 2026 installations should also update to Update 1.1, according to CISA’s machine-readable advisory.

Checking installed versions is therefore essential before planning upgrades. Cybersecurity News previously covered CISA’s OT asset inventory guidance, which explains how accurate device and software records support vulnerability management across industrial environments.

For organizations unable to update, Subnet recommends monitoring user activity records and restricting Client Access Server users’ access to browser F12 Developer Tools to reduce authorization-related risk.

For the SQL injection issue, the vendor recommends restricting user access to the report designer. These are interim measures, not replacements for the recommended updates.

CISA also advises keeping control systems off the public internet, placing them behind firewalls, and separating them from business networks.

Where remote access is necessary, organizations should use updated VPNs and assess connected devices. Related secure OT connectivity guidance explains the value of limited exposure and controlled connections.

Before applying changes, operators should assess operational impact and risk. Operators should follow internal response procedures for suspected malicious activity and report it to CISA.

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