CVE-2022-21459Network attack vector

Authenticated server crash and data manipulation

Published Apr 19, 2022 · Updated Sep 24, 2024

Denial of service and data manipulation in Oracle MySQL Server 8.0.28 and earlier allow remote authenticated users to crash the server or alter data. Oracle identifies the Server Optimizer as the affected component but has not published the faulty operation or input that triggers the flaw. Exploitation requires a high-privilege MySQL account over the MySQL protocol and can cause a hang or repeatable crash, or update, insert, and delete some accessible data.

CVSS severity5.5
Medium
EPSS probability1.09%
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 and data manipulation in Oracle MySQL Server 8.0.28 and earlier allow remote authenticated users to crash the server or alter data. Oracle identifies the Server Optimizer as the affected component but has not published the faulty operation or input that triggers the flaw. Exploitation requires a high-privilege MySQL account over the MySQL protocol and can cause a hang or repeatable crash, or update, insert, and delete some accessible data.

The record

CVE
CVE-2022-21459
Published
Apr 19, 2022
Updated
Sep 24, 2024
Vendor
Oracle Corporation
Product
MySQL Server
Classifications
T1499.004
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Apr 19, 2022CVE publishedPublication date reported by the CVE source.
  2. Sep 24, 2024Record 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=8.0.28 and prior

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Oracle Corporation · MySQL Serverversion=8.0.28 and prior

Published CVSS scores

5.5Oracle CorporationCVSS: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.

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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

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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