CVE-2022-21265Network attack vector

Privileged data modification and service interruption

Published Jan 19, 2022 · Updated Sep 24, 2024

Optimizer vulnerability in Oracle MySQL Server 8.0.27 and earlier allows remote authenticated users to alter data and interrupt service. Oracle has not published the optimizer operation or input that triggers the flaw. Exploitation requires a high-privileged account with network access; successful attacks can update, insert, or delete accessible data or partially interrupt the server.

CVSS severity3.8
Low
EPSS probability1.48%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Optimizer vulnerability in Oracle MySQL Server 8.0.27 and earlier allows remote authenticated users to alter data and interrupt service. Oracle has not published the optimizer operation or input that triggers the flaw. Exploitation requires a high-privileged account with network access; successful attacks can update, insert, or delete accessible data or partially interrupt the server.

The record

CVE
CVE-2022-21265
Published
Jan 19, 2022
Updated
Sep 24, 2024
Vendor
Oracle Corporation
Product
MySQL Server
Classifications
T1499, T1565.001
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Jan 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=8.0.27 and prior

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Oracle Corporation · MySQL Serverversion=8.0.27 and prior

Published CVSS scores

3.8Oracle CorporationCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:L

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

T1499Endpoint Denial of Service
T1565.001Stored Data Manipulation

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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