CVE-2021-2147

Privileged modification of appliance-accessible data

Published Apr 22, 2021 · Updated Sep 26, 2024

Installation flaw in Oracle ZFS Storage Appliance Kit 8.8 allows local users with high privileges to modify appliance-accessible data. Oracle has not published the affected installation operation or how it handles attacker-controlled input. Exploitation requires high attack complexity and interaction by another person; impact is limited to unauthorized data changes.

CVSS severity1.8
Low
EPSS probability0.32%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Installation flaw in Oracle ZFS Storage Appliance Kit 8.8 allows local users with high privileges to modify appliance-accessible data. Oracle has not published the affected installation operation or how it handles attacker-controlled input. Exploitation requires high attack complexity and interaction by another person; impact is limited to unauthorized data changes.

The record

CVE
CVE-2021-2147
Published
Apr 22, 2021
Updated
Sep 26, 2024
Vendor
Oracle
Product
Oracle ZFS Storage Appliance Kit
Classifications
T1565
Attack vector
local
Privileges
admin

Timeline

How it unfolded

  1. Apr 22, 2021CVE publishedPublication date reported by the CVE source.
  2. Sep 26, 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=8.8

What conditions does exploitation require?

Attack vectorlocal
Required privilegesadmin

What is affected?

Oracle · Oracle ZFS Storage Appliance Kitversion=8.8

Published CVSS scores

1.2NIST NVDAV:L/AC:H/Au:N/C:N/I:P/A:N
1.8OracleCVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:U/C:N/I:L/A:N

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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1565Data Manipulation

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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