CVE-2021-27928

Name: CVE-2021-27928
Creator: NVD / NIST
Published: 2021-03-19T03:15:12.427+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.2/10EPSS 38.44%

Last modified Jun 17, 2026

CVE-2021-27928 is a high-severity vulnerability rated 7.2/10 on the CVSS scale. A remote code execution issue was discovered in MariaDB 10.2 before 10.2.37, 10.3 before 10.3.28, 10.4 before 10.4.18, and 10.5 before 10.5.9; Percona Server through 2021-03-03; and the wsrep patch through 2021-03-03 for MySQL. An untrusted search path leads to eval injection, in which a database SUPER user can execute OS commands after modifying wsrep_provider and wsrep_notify_cmd. EPSS estimates a 38.44% chance of exploitation in the next 30 days.

Description

A remote code execution issue was discovered in MariaDB 10.2 before 10.2.37, 10.3 before 10.3.28, 10.4 before 10.4.18, and 10.5 before 10.5.9; Percona Server through 2021-03-03; and the wsrep patch through 2021-03-03 for MySQL. An untrusted search path leads to eval injection, in which a database SUPER user can execute OS commands after modifying wsrep_provider and wsrep_notify_cmd. NOTE: this does not affect an Oracle product.

Metrics

CVSS 3.1

7.2/10

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

38.44%

98.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-94

Affected Software

Vendor	Product	Versions
Mariadb	Mariadb	>= 10.2, < 10.2.37
Mariadb	Mariadb	>= 10.3, < 10.3.28
Mariadb	Mariadb	>= 10.4, < 10.4.18
Mariadb	Mariadb	>= 10.5, < 10.5.9
Percona	Percona Server	<= 2021-03-03
Galeracluster	Wsrep	<= 2021-03-03
Debian	Debian Linux	9.0

References

http://packetstormsecurity.com/files/162177/MariaDB-10.2-Command-Execution.htmlExploit, Third Party Advisory, VDB Entry
https://jira.mariadb.org/browse/MDEV-25179Issue Tracking, Vendor Advisory
https://lists.debian.org/debian-lts-announce/2021/03/msg00028.htmlMailing List, Third Party Advisory
https://mariadb.com/kb/en/mariadb-10237-release-notes/Release Notes, Vendor Advisory
https://mariadb.com/kb/en/mariadb-10328-release-notes/Release Notes, Vendor Advisory
https://mariadb.com/kb/en/mariadb-10418-release-notes/Release Notes, Vendor Advisory
https://mariadb.com/kb/en/mariadb-1059-release-notes/Release Notes, Vendor Advisory
https://mariadb.com/kb/en/security/Vendor Advisory
https://security.gentoo.org/glsa/202105-28Third Party Advisory
http://packetstormsecurity.com/files/162177/MariaDB-10.2-Command-Execution.htmlExploit, Third Party Advisory, VDB Entry
https://jira.mariadb.org/browse/MDEV-25179Issue Tracking, Vendor Advisory
https://lists.debian.org/debian-lts-announce/2021/03/msg00028.htmlMailing List, Third Party Advisory
https://mariadb.com/kb/en/mariadb-10237-release-notes/Release Notes, Vendor Advisory
https://mariadb.com/kb/en/mariadb-10328-release-notes/Release Notes, Vendor Advisory
https://mariadb.com/kb/en/mariadb-10418-release-notes/Release Notes, Vendor Advisory
https://mariadb.com/kb/en/mariadb-1059-release-notes/Release Notes, Vendor Advisory
https://mariadb.com/kb/en/security/Vendor Advisory
https://security.gentoo.org/glsa/202105-28Third Party Advisory

Timeline

Published: Mar 19, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-27928?

How severe is CVE-2021-27928?

CVE-2021-27928 has a CVSS score of 7.2/10 (HIGH severity). The EPSS model estimates a 38.44% probability of exploitation in the next 30 days.

How do I fix CVE-2021-27928?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-27928?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST