CVE-2021-21595

Name: CVE-2021-21595
Creator: NVD / NIST
Published: 2021-08-16T22:15:07.49+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.7/10EPSS 0.24%

Last modified Jun 17, 2026

CVE-2021-21595 is a medium-severity vulnerability rated 6.7/10 on the CVSS scale. Dell EMC PowerScale OneFS versions 8.2.x - 9.1.1.x contain an improper neutralization of special elements used in an OS command. This vulnerability could allow the compadmin user to elevate privileges. EPSS estimates a 0.24% chance of exploitation in the next 30 days.

Description

Dell EMC PowerScale OneFS versions 8.2.x - 9.1.1.x contain an improper neutralization of special elements used in an OS command. This vulnerability could allow the compadmin user to elevate privileges. This only impacts Smartlock WORM compliance mode clusters as a critical vulnerability and Dell recommends to update/upgrade at the earliest opportunity.

Metrics

CVSS 3.1

6.7/10

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

0.24%

15.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Dell	Emc Powerscale Onefs	>= 9.0.0.0, < 9.2.0
Dell	Emc Powerscale Onefs	8.2.2

References

https://www.dell.com/support/kbdoc/000190408Patch, Vendor Advisory
https://www.dell.com/support/kbdoc/000190408Patch, Vendor Advisory

Timeline

Published: Aug 16, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-21595?

How severe is CVE-2021-21595?

CVE-2021-21595 has a CVSS score of 6.7/10 (MEDIUM severity). The EPSS model estimates a 0.24% probability of exploitation in the next 30 days.

How do I fix CVE-2021-21595?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-21595?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST