CVE-2024-21199Network attack vector

Authenticated hang or crash via undisclosed InnoDB flaw

Published Oct 15, 2024 · Updated Nov 3, 2025

DoS in InnoDB in MySQL Server 8.0.39 and earlier, 8.4.2 and earlier, and 9.0.1 and earlier allows remote authenticated users to cause a hang or crash. Oracle has not disclosed the specific InnoDB code path or the operation performed on attacker-controlled input. Exploitation requires a highly privileged database account over a supported network protocol and affects availability only.

CVSS severity4.9
Medium
EPSS probability0.90%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

DoS in InnoDB in MySQL Server 8.0.39 and earlier, 8.4.2 and earlier, and 9.0.1 and earlier allows remote authenticated users to cause a hang or crash. Oracle has not disclosed the specific InnoDB code path or the operation performed on attacker-controlled input. Exploitation requires a highly privileged database account over a supported network protocol and affects availability only.

The record

CVE
CVE-2024-21199
Published
Oct 15, 2024
Updated
Nov 3, 2025
Vendor
Oracle Corporation
Product
MySQL Server
Classifications
T1499.004
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Oct 15, 2024CVE 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=* <=8.0.39
  2. Affected versionversion=* <=8.4.2
  3. Affected versionversion=* <=9.0.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Oracle Corporation · MySQL Serverversion=* <=8.0.39; version=* <=8.4.2; version=* <=9.0.1

Published CVSS scores

4.9OracleCVSS: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.

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

T1499.004Application or System Exploitation

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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