CVE-2021-27928

What it is

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.

At a glance

Exploitability

Can be exploited over the network with an admin-level account. High risk of data exposure, data tampering, service disruption.

Exploit odds

38.2% chance of exploitation in the next 30 days (EPSS). Higher than most.

Fix

A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

1. 2021-03-19 03:15 UTC PublishedDisclosed publicly on CVE.org and NVD
2. 2026-06-17 03:45 UTC Last updatedMost recent change to the record

Why it ranks here

• Exploited in the wild: no, CISA does not list it.
• Exploit odds: 38.2% in the next 30 days (EPSS).
• Severity: 7.2 HIGH (CVSS).
• Fix: a patch or advisory is linked.

Details

Published

2021-03-19 03:15 UTC

Last modified

2026-06-17 03:45 UTC

Exploit probability

38.2% · EPSS, next 30 days

Weakness

CWE-94 · Code injection

Record status

Modified

Affected

• Mariadb < 10.2.37
• Mariadb < 10.3.28
• Mariadb < 10.4.18
• Mariadb < 10.5.9
• Percona Server ≤ 2021-03-03
• Galeracluster Wsrep ≤ 2021-03-03
• Debian Linux 9.0

Attack profile CVSS 3.1 · 7.2

Attack vector

Network

Complexity

Low

Privileges needed

High

User interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Is it in your code?

Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.

Read https://cve-list.com/agent/cve/CVE-2021-27928.md and follow it. Check whether this project is affected by CVE-2021-27928. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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