CVE-2023-21929Network attack vector

Authenticated data modification and database server crash

Published Apr 18, 2023 · Updated Feb 13, 2025

Unspecified DDL flaw in Oracle MySQL Server 8.0.32 and earlier allows remote authenticated users to modify data or crash the database server. Oracle has not disclosed the Server: DDL code locus or the operation that produces these effects. Exploitation requires a high-privileged MySQL account with network access; successful attacks can update, insert, or delete some accessible data, hang the service, or cause repeatable crashes.

CVSS severity5.5
Medium
EPSS probability1.27%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Unspecified DDL flaw in Oracle MySQL Server 8.0.32 and earlier allows remote authenticated users to modify data or crash the database server. Oracle has not disclosed the Server: DDL code locus or the operation that produces these effects. Exploitation requires a high-privileged MySQL account with network access; successful attacks can update, insert, or delete some accessible data, hang the service, or cause repeatable crashes.

The record

CVE
CVE-2023-21929
Published
Apr 18, 2023
Updated
Feb 13, 2025
Vendor
Oracle Corporation
Product
MySQL Server
Classifications
T1565.001, T1499.004
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Apr 18, 2023CVE publishedPublication date reported by the CVE source.
  2. Feb 13, 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=8.0.32 and prior

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Oracle Corporation · MySQL Serverversion=8.0.32 and prior

Published CVSS scores

5.5OracleCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1565.001Stored Data Manipulation
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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