CVE-2023-21833Network attack vector

Authenticated data disclosure via Object Store

Published Feb 17, 2024 · Updated Mar 27, 2025

Information disclosure in Oracle ZFS Storage Appliance Kit 8.8 allows remote authenticated users to read a subset of appliance data via HTTP. Oracle identifies the Object Store component but has not published the flawed operation or HTTP request condition that exposes data. A low-privileged appliance account and network access to the HTTP service are required; the reported consequence is limited to unauthorized reads.

CVSS severity4.3
Medium
EPSS probability0.38%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information disclosure in Oracle ZFS Storage Appliance Kit 8.8 allows remote authenticated users to read a subset of appliance data via HTTP. Oracle identifies the Object Store component but has not published the flawed operation or HTTP request condition that exposes data. A low-privileged appliance account and network access to the HTTP service are required; the reported consequence is limited to unauthorized reads.

The record

CVE
CVE-2023-21833
Published
Feb 17, 2024
Updated
Mar 27, 2025
Vendor
Oracle
Product
Oracle ZFS Storage Appliance Kit
Classifications
CWE-200, T1213
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Feb 17, 2024CVE publishedPublication date reported by the CVE source.
  2. Mar 27, 2025Record 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 vectornetwork
Required privilegesauthenticated

What is affected?

Oracle · Oracle ZFS Storage Appliance Kitversion=8.8

Published CVSS scores

4.3OracleCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-200Exposure of Sensitive Information to an Unauthorized Actor
T1213Data from Information Repositories

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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