CVE-2021-36305: Dell Emc Powerscale Onefs

Medium severity, CVSS 6.5. EPSS: 0.8% chance of exploitation in the next 30 days.

Dell PowerScale OneFS contains an Unsynchronized Access to Shared Data in a Multithreaded Context in SMB CA handling. An authenticated user of SMB on a cluster with CA could potentially exploit this vulnerability, leading to a denial of service over SMB.

Affected products

• Dell Emc Powerscale Onefs: version 8.2.0 only; version 8.2.1 only; version 8.2.2 only; version 9.0.0.0 only; version 9.1.0.0 only; version 9.1.1.0 only; …

Published 2021-11-12. Last modified 2026-06-17.