CVE-2020-15180Network attack vector

Remote command execution via unsanitized SST method

Published May 27, 2021 · Updated Aug 4, 2024

Command injection in affected MariaDB Server releases allows remote attackers to execute arbitrary commands on Galera cluster nodes. The mysql-wsrep donor callback accepts an SST method name from a joining node and passes it into the SST execution path without restricting shell-significant characters. Exploitation requires TCP access to the WSREP service and knowledge of the Galera cluster name; a malicious joiner can execute commands on donor nodes and locally on the joiner.

CVSS severity9.0
Critical
EPSS probability5.54%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Command injection in affected MariaDB Server releases allows remote attackers to execute arbitrary commands on Galera cluster nodes. The mysql-wsrep donor callback accepts an SST method name from a joining node and passes it into the SST execution path without restricting shell-significant characters. Exploitation requires TCP access to the WSREP service and knowledge of the Galera cluster name; a malicious joiner can execute commands on donor nodes and locally on the joiner.

The record

CVE
CVE-2020-15180
Published
May 27, 2021
Updated
Aug 4, 2024
Vendor
MariaDB
Product
MariaDB Server
Classifications
CWE-20, CWE-77, T1059
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 27, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 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=mariadb 10.1.47, mariadb 10.2.34, mariadb 10.3.25, mariadb 10.4.15, mariadb 10.5.6

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

MariaDB · MariaDB Serverversion=mariadb 10.1.47, mariadb 10.2.34, mariadb 10.3.25, mariadb 10.4.15, mariadb 10.5.6

Published CVSS scores

6.8NIST NVDAV:N/AC:M/Au:N/C:P/I:P/A:P
9.0NIST NVDCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/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.

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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-20Improper Input Validation
CWE-77Improper Neutralization of Special Elements used in a Command ('Command Injection')
T1059Command and Scripting Interpreter

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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