CVE-2021-21599

mediumpriority · track · 27EPSS 0.004 · 32 %ileEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.38% (32nd) EPSS

CVSS 4.6 · medium

Is it mine?

3 products

Check your exposure

Who says so?

3 sources

cnnvd · enisa_euvd · nvd

EPSS · scored 2026-10-27

Dell EMC PowerScale OneFS versions 8.2.x - 9.2.1.x contain an OS command injection vulnerability. This may allow a user with ISI_PRIV_LOGIN_SSH or ISI_PRIV_LOGIN_CONSOLE to escalate privileges and escape the compliance guarantees. This only impacts Smartlock WORM compliance mode clusters as a critical vulnerability and Dell recommends to update/upgrade at the earliest opportunity.

cvss

Technical severity, 0–10. One row per scoring source.

6.7

010

base score 0–10 · higher = more severe · hover a vector to decode

v2.04.6mediumAV:L/AC:L/Au:N/C:P/I:P/A:Pprimary · NVD / NIST USexploitability 3.9 · impact 6.4

v3.16.7mediumCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 0.8 · impact 5.9

v3.16mediumCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:Hsecondary · ENISA EU

v3.16mediumCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:Hsecondary · security_alert@emc.comexploitability 0.8 · impact 5.2

v3.16.1mediumCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-78USprimary

affected products (3)

Products and version ranges known to be affected.

Dell PowerScale OneFS≤ 8.2.x - 9.2.1.xenisa_euvdEU
dell emc powerscale onefs= 8.2.2nvdUScpe:2.3:o:dell:emc_powerscale_onefs:*:*:*:*:*:*:*:*
dell emc powerscale onefs9.0.0.0 → 9.2.1nvdUScpe:2.3:o:dell:emc_powerscale_onefs:*:*:*:*:*:*:*:*

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd nvd NVD CVE.org MITRE

published 2021-08-16modified 2026-06-17

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references (3)

External citations — patches, advisories, analysis.

scry

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