CVE-2026-33570

Subnet Solutions PowerSYSTEM Center Incorrect Authorization

State: Published
Severity: 6.9 Medium
Published: May 12, 2026
Updated: May 13, 2026
Reserved: Apr 16, 2026

Description

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

Scores

CVSS	Score	Vector	Source
4.0	6.9 Medium	CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N	icscert
3.1	5.7 Medium	CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N	icscert

Weaknesses

CWE-863 Incorrect Authorization

Affected Products

Product	Versions
PowerSYSTEM Center 2020Subnet Solutions	5.11.x through 5.28.xAffected

References

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

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