# CVE-2026-63017 — Subnet Solutions PowerSYSTEM Center 2020

> As of 2026-11-09, CVE-2026-63017 is a CRITICAL-severity vulnerability in Subnet Solutions PowerSYSTEM Center 2020, CVSS v3.1 9, EPSS 0.2% (18.6th percentile). Threadlinqs Intelligence links 1 tracked threat campaign to CVE-2026-63017, most recently “CISA ICSA-26-307-01: Critical Authorization Bypass (CVE-2026-63017) and SQL Injection (CVE-2026-63774) in Subnet Solutions PowerSYSTEM Center”.

**Last updated:** 2026-11-09

## What is CVE-2026-63017?

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

The record classifies CVE-2026-63017 under weakness class [CWE-863](https://intel.threadlinqs.com/cwe/CWE-863). Its CVSS v3 base vector states that the flaw is reachable from an adjacent network, needs low-privilege credentials, needs no user interaction, and has high impact on confidentiality, integrity, availability. 3 affected-product entries are recorded, across 1 vendor, listed below. The identifier was first published 4 days ago.

## Severity and exploitation probability

- **CVSS v3.1 base score:** 9 — CRITICAL (`CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H`)
- **CVSS v4.0 base score:** 9.4 (`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`)
- **EPSS (FIRST):** 0.2% probability of exploitation in the next 30 days, higher than 18.6% of all scored CVEs
- **CISA KEV:** Not listed in the CISA Known Exploited Vulnerabilities catalog
- **Threadlinqs priority:** 5.2/10 — a Threadlinqs composite of the CVSS base score, the EPSS percentile and public exploit availability
- **Published:** 2026-11-06

## Is CVE-2026-63017 being exploited?

It currently carries a trending score of 39 in the Threadlinqs vulnerability feed.

## Affected products and versions

- **Subnet Solutions**: PowerSYSTEM Center 2020, PowerSYSTEM Center 2024, PowerSYSTEM Center 2026

## How to fix CVE-2026-63017

No vendor patch reference has been recorded for CVE-2026-63017 in the tracked sources. Follow the references below for a fix, and treat the products listed above as exposed until the vendor states otherwise.

## Threat activity tracking CVE-2026-63017

1 tracked threat in the Threadlinqs corpus references CVE-2026-63017, either in the campaign’s CVE list or as an indicator on the campaign record.

- [CISA ICSA-26-307-01: Critical Authorization Bypass (CVE-2026-63017) and SQL Injection (CVE-2026-63774) in Subnet Solutions PowerSYSTEM Center](https://intel.threadlinqs.com/threat/TL-2026-5604) — CRITICAL · 2026-11-09

## Sources

Enriched from CVE.org, NVD, FIRST EPSS, GitHub Security Advisories. This product uses the NVD API but is not endorsed or certified by the NVD.

**Other references**

- [cisa.gov](https://www.cisa.gov/news-events/ics-advisories/icsa-26-307-01)
- [github.com](https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-307-01.json)

Canonical: https://intel.threadlinqs.com/cve/CVE-2026-63017
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