CVE-2021-21553: Dell Powerscale Onefs

High severity, CVSS 8.8. EPSS: 0.2% chance of exploitation in the next 30 days.

Dell PowerScale OneFS versions 8.1.0-9.1.0 contain an Incorrect User Management vulnerability.under some specific conditions, this can allow the CompAdmin user to elevate privileges and break out of Compliance mode. This is a critical vulnerability and Dell recommends upgrading at the earliest.

Affected products

• Dell Powerscale Onefs: from 8.1.0, up to and including 9.1.0

Published 2021-08-03. Last modified 2026-06-17.