CVE-2025-21540

mysql: MySQL Server: Unauthorized Data Modification and Read Access Vulnerability

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Severity

Moderate

Red Hat Product Security

5.4

CVSS 3.1

Review impact separately from score.

Published · January 22, 2025

Updated · September 1, 2026

Description

A flaw was found in Oracle MySQL Server (Security: Privileges component). A low-privileged remote attacker with network access can gain unauthorized read and write access to MySQL Server data.

Statement

Red Hat ships MySQL Server in Red Hat Enterprise Linux. This vulnerability has been addressed through regular MySQL release updates.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

Restrict network access to the MySQL Server to trusted clients only.

CVSS / CWE

CVSS 3.1 · 5.4
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

CWE-862 · Missing Authorization