CVE-2021-21565: Dell Powerscale Onefs

Medium severity, CVSS 5.3. EPSS: 0.9% chance of exploitation in the next 30 days.

Dell PowerScale OneFS versions 9.1.0.3 and earlier contain a denial of service vulnerability. SmartConnect had an error condition that may be triggered to loop, using CPU and potentially preventing other SmartConnect DNS responses.

Affected products

• Dell Powerscale Onefs: up to and including 9.1.0.3

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