CVE-2021-36290

Local Administrator privilege escalation

Published Apr 8, 2022 · Updated Sep 16, 2024

Privilege escalation in Dell VNX2 for File 8.1.21.266 and earlier allows local users with administrative access to gain higher privileges. Dell has not published the affected proprietary-code locus or the operation that mishandles administrator-controlled input. Exploitation requires existing local administrative privileges and can compromise stored data and interrupt storage services.

CVSS severity6.4
Medium
EPSS probability0.19%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Privilege escalation in Dell VNX2 for File 8.1.21.266 and earlier allows local users with administrative access to gain higher privileges. Dell has not published the affected proprietary-code locus or the operation that mishandles administrator-controlled input. Exploitation requires existing local administrative privileges and can compromise stored data and interrupt storage services.

The record

CVE
CVE-2021-36290
Published
Apr 8, 2022
Updated
Sep 16, 2024
Vendor
Dell
Product
VNX2
Classifications
CWE-269, T1068
Attack vector
local
Privileges
admin

Timeline

How it unfolded

  1. Apr 8, 2022CVE publishedPublication date reported by the CVE source.
  2. Sep 16, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=unspecified <Version 8.1.21.303 (file) Version 5.33.021.5.303 (block)

What conditions does exploitation require?

Attack vectorlocal
Required privilegesadmin

What is affected?

Dell · VNX2version=unspecified <Version 8.1.21.303 (file) Version 5.33.021.5.303 (block)

Published CVSS scores

4.6NIST National Vulnerability DatabaseAV:L/AC:L/Au:N/C:P/I:P/A:P
6.7NIST National Vulnerability DatabaseCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
6.4DellCVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-269Improper Privilege Management
T1068Exploitation for Privilege Escalation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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