CVE-2022-32083Public exploitNetwork attack vector

Database crash via eliminated subquery cache wrapping

Published Jul 1, 2022 · Updated Aug 3, 2024

Denial of service in MariaDB Server 10.2 through 10.6.1 allows attackers to crash the database process with crafted SQL. The optimizer unlinks an eliminated subquery from its SELECT_LEX tree but leaves stale references that setup_subquery_caches attempts to wrap without a query plan. An account able to create tables and execute nested subqueries can terminate the database process, interrupting service for all clients.

CVSS severity7.5
High
EPSS probability1.90%
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 MariaDB Server 10.2 through 10.6.1 allows attackers to crash the database process with crafted SQL. The optimizer unlinks an eliminated subquery from its SELECT_LEX tree but leaves stale references that setup_subquery_caches attempts to wrap without a query plan. An account able to create tables and execute nested subqueries can terminate the database process, interrupting service for all clients.

The record

CVE
CVE-2022-32083
Published
Jul 1, 2022
Updated
Aug 3, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
T1499.004
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 1, 2022CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 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?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

5.5Amazon LinuxCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
5.0NIST NVDAV:N/AC:L/Au:N/C:N/I:N/A:P

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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

T1499.004Application or System Exploitation

Public exploit references

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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