CVE-2025-21584Network attack vector

Authenticated database server hang or crash

Published Apr 15, 2025 · Updated Nov 3, 2025

Denial of service in Oracle MySQL Server's DDL component allows remote authenticated users to crash or hang the database server. Oracle has not disclosed the faulty DDL operation or the input pattern that triggers the availability failure. Exploitation requires high database privileges and network access through a supported protocol; affected releases are 8.0.0 through 8.0.41, 8.4.0 through 8.4.4, and 9.0.0 through 9.2.0.

CVSS severity4.9
Medium
EPSS probability0.86%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Denial of service in Oracle MySQL Server's DDL component allows remote authenticated users to crash or hang the database server. Oracle has not disclosed the faulty DDL operation or the input pattern that triggers the availability failure. Exploitation requires high database privileges and network access through a supported protocol; affected releases are 8.0.0 through 8.0.41, 8.4.0 through 8.4.4, and 9.0.0 through 9.2.0.

The record

CVE
CVE-2025-21584
Published
Apr 15, 2025
Updated
Nov 3, 2025
Vendor
Oracle Corporation
Product
MySQL Server
Classifications
T1499.004
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 15, 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?

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  1. Affected versionversion=8.0.0 <=8.0.41
  2. Affected versionversion=8.4.0 <=8.4.4
  3. Affected versionversion=9.0.0 <=9.2.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Oracle Corporation · MySQL Serverversion=8.0.0 <=8.0.41; version=8.4.0 <=8.4.4; version=9.0.0 <=9.2.0

Published CVSS scores

4.9Oracle CorporationCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/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.

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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

T1499.004Application or System Exploitation

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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