CVE-2026-63017 PUBLISHED

Subnet Solutions PowerSYSTEM Center Incorrect Authorization

Assigner: icscert
Reserved: 27.07.2026 Published: 06.11.2026 Updated: 06.11.2026

Incorrect authorization in PowerSYSTEM Center allows a low-privileged, authenticated user to access resources normally limited to administrators.

CVSS Vector: CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
CVSS Score: 9

Attack Vector	Adjacent Network	Scope	Changed
Attack Complexity	Low	Confidentiality Impact	High
Privileges Required	Low	Integrity Impact	High
User Interaction	None	Availability Impact	High

CVSS 3.1

CVSS Vector: CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
CVSS Score: 9.4

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Adjacent	Confidentiality	High	Confidentiality	High
Attack Complexity	Low	Integrity	High	Integrity	High
Attack Requirements	None	Availability	High	Availability	High
Privileges Required	Low
User Interaction	None

CVSS 4.0

Product Status

Vendor	Subnet Solutions
Product	PowerSYSTEM Center 2020
Versions	Default: unaffected affected from 0 to 5.29.x (incl.) Version Update 30 is unaffected

Vendor	Subnet Solutions
Product	PowerSYSTEM Center 2024
Versions	Default: unaffected affected from 6.0.x to 6.2.x (incl.) Version PowerSYSTEM Center 2026 Update 1.1 is unaffected

Vendor	Subnet Solutions
Product	PowerSYSTEM Center 2026
Versions	Default: unaffected affected from 7.0.x to 7.1.x (incl.) Version Update 1.1 is unaffected

Workarounds

If unable to update to the latest version, Subnet Solutions recommends users monitor user activity records to ensure users are following acceptable usage policies of the application. Subnet Solutions also recommends disabling PowerSYSTEM Center Client Access Server users' ability to access the browser's F12 Developer Tools.

Solutions

Subnet Solutions recommends users update to PowerSYSTEM Center 2026 Update 1.1. For assistance in upgrading, users should contact the Subnet Solutions System Integration team or customer support team at (403) 270-8885 or by email at support@subnet.com.

Credits

Chinmay Patel of Digital Boundary Group reported this vulnerability to Subnet Solutions. finder

References

Problem Types

CWE-863 CWE