SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2021-27928

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.

EXPLOITHIGH 7.2EPSS 38.4%

Does this matter?

EPSS puts the probability of exploitation in the next 30 days at 38.4%, higher than 99% of all known CVEs. Patch or mitigate before the next change window.

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.

CVSS 3.1
7.2 HIGHCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
EPSS
38.44% probability · 99th percentile
Public exploits
1 in Exploit-DB · first 14 April 2021
CISA KEV
Not listed
Weakness
CWE-94
Affected
mariadb/mariadb · percona/percona server · galeracluster/wsrep · debian/debian linux
Source
cve@mitre.org
EPSS trend
0%20%40%3 November 2026: 38.44%3 November 20263 November 2026

EPSS 38.4% since 3 November 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

Public exploits (1)

Entries in Exploit-DB that cite this CVE. Links go to the Exploit-DB page and to the file in the public repository; nothing is hosted here. A verified tick means the Exploit-DB team confirmed the exploit works against the stated version.

EDB-IDTitleTypePublishedVerified
EDB-49765source ↗MariaDB 10.2 - 'wsrep_provider' OS Command Executionlinux · Central InfoSeclocal14 April 2021no

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.