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Fencer Vulns
medium 6.0

CVE-2021-21595 json

Dell EMC PowerScale OneFS versions 8.2.x - 9.1.1.x contain an improper neutralization of special elements used in an OS command.

published 2021-08-16 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-8867

cvss
6.0
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.2%
EPSS 0.2% chance of exploitation in 30 days, percentile 15%
public exploits
0
none known

Summary

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.

Patch / fix

  • dell emc_powerscale_onefs 9.2.0

Exploit prediction

0.24% chance of exploitation in the next 30 days, higher than 15% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 6.0 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H
NVD 3.1 6.7 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 4.6 AV:L/AC:L/Au:N/C:P/I:P/A:P

Affected products

  • Dell PowerScale OneFS

Classification

Weakness
  • CWE-77 Improper Neutralization of Special Elements used in a Command

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.