CVE-2024-21008Network attack vector

Authenticated server hang or repeatable crash

Published Apr 16, 2024 · Updated Mar 25, 2025

Denial of service in Oracle MySQL Server 8.0.36 and earlier and 8.3.0 and earlier allows remote authenticated users to hang or crash the server. Oracle identifies the Server Optimizer as the affected locus but has not published the malformed input or incorrect optimizer operation. Exploitation requires high privileges, network access through the MySQL protocol, and high attack complexity; impact is limited to a hang or repeatable crash.

CVSS severity4.4
Medium
EPSS probability0.89%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Denial of service in Oracle MySQL Server 8.0.36 and earlier and 8.3.0 and earlier allows remote authenticated users to hang or crash the server. Oracle identifies the Server Optimizer as the affected locus but has not published the malformed input or incorrect optimizer operation. Exploitation requires high privileges, network access through the MySQL protocol, and high attack complexity; impact is limited to a hang or repeatable crash.

The record

CVE
CVE-2024-21008
Published
Apr 16, 2024
Updated
Mar 25, 2025
Vendor
Oracle Corporation
Product
MySQL Server
Classifications
CWE-400, T1499
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Apr 16, 2024CVE publishedPublication date reported by the CVE source.
  2. Mar 25, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=* <=8.0.36
  2. Affected versionversion=* <=8.3.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Oracle Corporation · MySQL Serverversion=* <=8.0.36; version=* <=8.3.0

Published CVSS scores

4.4OracleCVSS:3.1/AV:N/AC:H/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.

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
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-400Uncontrolled Resource Consumption
T1499Endpoint Denial of Service

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

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo