CVE-2022-27451Network attack vector

Unauthenticated SQL query crash via window function

Published Apr 14, 2022 · Updated Aug 3, 2024

MariaDB Server before 10.7.4 allows remote attackers to crash the database through a crafted SQL query using a window function in ORDER BY. The sql_select.cc setup_order path failed to split window-function expressions before processing, leading to a segmentation fault. The attack requires no authentication or user interaction and affects availability only; fixed releases include 10.7.4, 10.6.8, 10.5.16, and 10.4.25.

CVSS severity7.5
High
EPSS probability1.66%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

MariaDB Server before 10.7.4 allows remote attackers to crash the database through a crafted SQL query using a window function in ORDER BY. The sql_select.cc setup_order path failed to split window-function expressions before processing, leading to a segmentation fault. The attack requires no authentication or user interaction and affects availability only; fixed releases include 10.7.4, 10.6.8, 10.5.16, and 10.4.25.

The record

CVE
CVE-2022-27451
Published
Apr 14, 2022
Updated
Aug 3, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
T1499
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 14, 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 privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.5[email protected]CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
5.0[email protected]AV: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.

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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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1499Endpoint Denial of Service

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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