CVE-2021-2149

Local data modification through undisclosed Core flaw

Published Apr 22, 2021 · Updated Sep 26, 2024

An undisclosed Core flaw in Oracle ZFS Storage Appliance Kit 8.8 allows local users to modify some appliance-accessible data. Oracle has not published the affected function, input, or incorrect operation within the Core component. Exploitation requires a logged-in, low-privilege account and high-complexity local conditions; successful attacks can update, insert, or delete only some appliance-accessible data.

CVSS severity2.5
Low
EPSS probability0.28%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

An undisclosed Core flaw in Oracle ZFS Storage Appliance Kit 8.8 allows local users to modify some appliance-accessible data. Oracle has not published the affected function, input, or incorrect operation within the Core component. Exploitation requires a logged-in, low-privilege account and high-complexity local conditions; successful attacks can update, insert, or delete only some appliance-accessible data.

The record

CVE
CVE-2021-2149
Published
Apr 22, 2021
Updated
Sep 26, 2024
Vendor
Oracle
Product
Oracle ZFS Storage Appliance Kit
Classifications
T1565
Attack vector
local
Privileges
authenticated

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 privilegesauthenticated

What is affected?

Oracle · Oracle ZFS Storage Appliance Kitversion=8.8

Published CVSS scores

2.5OracleCVSS:3.1/AV:L/AC:H/PR:L/UI:N/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.

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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
Privilegesauthenticated
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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