CVE-2024-20973Network attack vector

Authenticated server hang or repeatable crash

Published Jan 16, 2024 · Updated Jun 9, 2025

Denial of service in Oracle MySQL Server 8.0.35 and earlier and 8.1.0 through 8.2.0 allows remote authenticated users to hang or crash the server. The affected Server Optimizer component processes a crafted request delivered over the MySQL protocol, but Oracle has not disclosed the faulty operation or input condition. A low-privileged database account and network access are required, and successful attacks affect availability only through a hang or repeatedly reproducible crash.

CVSS severity6.5
Medium
EPSS probability1.06%
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 8.0.35 and earlier and 8.1.0 through 8.2.0 allows remote authenticated users to hang or crash the server. The affected Server Optimizer component processes a crafted request delivered over the MySQL protocol, but Oracle has not disclosed the faulty operation or input condition. A low-privileged database account and network access are required, and successful attacks affect availability only through a hang or repeatedly reproducible crash.

The record

CVE
CVE-2024-20973
Published
Jan 16, 2024
Updated
Jun 9, 2025
Vendor
Oracle Corporation
Product
MySQL Server
Classifications
T1499
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jan 16, 2024CVE publishedPublication date reported by the CVE source.
  2. Jun 9, 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=* <=8.0.35
  2. Affected versionversion=* <=8.2.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Oracle Corporation · MySQL Serverversion=* <=8.0.35; version=* <=8.2.0

Published CVSS scores

6.5OracleCVSS:3.1/AV:N/AC:L/PR:L/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

T1499Endpoint Denial of Service

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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