CVE-2026-33570: Subnet Solutions PowerSYSTEM Center Incorrect Authorization

Severity: medium (CVSS 5.7 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-05-12 · updated 2026-10-26
Weakness: CWE-863

Description

PowerSYSTEM Center REST API endpoint for devices allows a low privilege authenticated user to access information normally limited by operational permissions.

Affected products

Subnet Solutions PowerSYSTEM Center 2020: from 5.11.x through 5.28.x

References

https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-132-02.json
https://www.cisa.gov/news-events/ics-advisories/icsa-26-132-02

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