CVE-2024-27766Public exploitNetwork attack vector

Disputed command execution via privileged UDF loading

Published Oct 17, 2024 · Updated Oct 20, 2024

Code execution in MariaDB Server 11.1 allows remote authenticated users to run OS commands through the lib_mysqludf_sys UDF. The reported technique registers a pre-positioned lib_mysqludf_sys.so file from the server plugin directory and invokes its command-execution function. MariaDB Foundation disputes that this crosses a privilege boundary because loading the UDF requires database privileges and prior placement of its library.

CVSS severity5.7
Medium
EPSS probability1.26%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Code execution in MariaDB Server 11.1 allows remote authenticated users to run OS commands through the lib_mysqludf_sys UDF. The reported technique registers a pre-positioned lib_mysqludf_sys.so file from the server plugin directory and invokes its command-execution function. MariaDB Foundation disputes that this crosses a privilege boundary because loading the UDF requires database privileges and prior placement of its library.

The record

CVE
CVE-2024-27766
Published
Oct 17, 2024
Updated
Oct 20, 2024
Vendor
MariaDB
Product
MariaDB Server
Classifications
CWE-94, T1059
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Oct 17, 2024CVE publishedPublication date reported by the CVE source.
  2. Oct 20, 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=11.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

MariaDB · MariaDB Serverversion=11.1

Published CVSS scores

5.7CISA-ADPCVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/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 exploitPublished

Weakness, pattern, technique

CWE-94Improper Control of Generation of Code ('Code Injection')
T1059Command and Scripting Interpreter

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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