CVE-2025-21494

mysql: MySQL Server: Denial of Service vulnerability

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Severity

Moderate

Red Hat Product Security

4.1

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 high-privileged local attacker with logon access to the MySQL Server infrastructure can cause a denial of service (DoS) of MySQL Server.

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 · 4.1
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H

CWE-20 · Improper Input Validation