What is CVE-2026-63017?

CVE-2026-63017 is a critical-severity vulnerability in Subnet Solutions Powersystem Center 2020, classified under Incorrect Authorization. CVSS score: 9.0/10. Published 2026-11-06.

How severe is CVE-2026-63017?

Critical severity. CVSS v3 base score is 9.0 out of 10.

Auth bypass in Subnet Solutions Powersystem Center 2020

CVE-2026-63017

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

Vulnerability class: Broken Access Control

Published 2026-11-06.

CVSS v3 metric

CVSS v3 base score 9.0 (Critical). Vector: CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Subnet Solutions Powersystem Center 2020
Subnet Solutions Powersystem Center 2024
Subnet Solutions Powersystem Center 2026

Weakness classification (CWE)

CWE-863 — Incorrect Authorization

References

github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-307-01.js…
www.cisa.gov/news-events/ics-advisories/icsa-26-307-01

Frequently asked questions

What is CVE-2026-63017?: CVE-2026-63017 is a critical-severity vulnerability in Subnet Solutions Powersystem Center 2020, classified under Incorrect Authorization. CVSS score: 9.0/10. Published 2026-11-06.
How severe is CVE-2026-63017?: Critical severity. CVSS v3 base score is 9.0 out of 10.