CVE-2025-21567Network attack vector

Authenticated disclosure of restricted database data

Published Jan 21, 2025 · Updated Nov 3, 2025

Incorrect authorization in Oracle MySQL Server 9.1.0 and earlier allows remote authenticated users to read restricted database data. Oracle identifies the affected locus as Server: Security: Privileges but has not disclosed which privilege check mishandles which untrusted input. A low-privileged account with network access through the MySQL Protocol is required, and the reported consequence is limited to reading a subset of server-accessible data.

CVSS severity4.3
Medium
EPSS probability0.56%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Incorrect authorization in Oracle MySQL Server 9.1.0 and earlier allows remote authenticated users to read restricted database data. Oracle identifies the affected locus as Server: Security: Privileges but has not disclosed which privilege check mishandles which untrusted input. A low-privileged account with network access through the MySQL Protocol is required, and the reported consequence is limited to reading a subset of server-accessible data.

The record

CVE
CVE-2025-21567
Published
Jan 21, 2025
Updated
Nov 3, 2025
Vendor
Oracle Corporation
Product
MySQL Server
Classifications
CWE-863
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jan 21, 2025CVE publishedPublication date reported by the CVE source.
  2. Nov 3, 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=* <=9.1.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Oracle Corporation · MySQL Serverversion=* <=9.1.0

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.

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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-863Incorrect Authorization

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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