What is the severity of CVE-2025-21499?

CVE-2025-21499 is classified as a high-severity vulnerability.

How do I fix CVE-2025-21499?

To fix CVE-2025-21499, upgrade MySQL Server to version 8.4.4 or later, or 9.1.1 or later.

What systems are impacted by CVE-2025-21499?

CVE-2025-21499 affects Oracle MySQL Server versions 8.4.3 and prior, and 9.1.0 and prior.

What can an attacker do with CVE-2025-21499?

An attacker exploiting CVE-2025-21499 can compromise the MySQL Server if they have high privileges and network access.

Is there a workaround for CVE-2025-21499?

There is no official workaround for CVE-2025-21499; updating to a secure version is recommended.

Vulnerability/
CVE-2025-21499

medium

4.9

CWE

770

EPSS

0.043%

21/1/2025

23/1/2025

CVE-2025-21499

First published: Tue Jan 21 2025(Updated: )

Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: DDL). Supported versions that are affected are 8.4.3 and prior and 9.1.0 and prior. Easily exploitable vulnerability allows high privileged attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server. CVSS 3.1 Base Score 4.9 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H).

Credit: secalert_us@oracle.com

Affected Software	Affected Version	How to fix
MySQL Server	<8.4.3<9.1.0

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Reference Links

https://www.oracle.com/security-alerts/cpujan2025.html

Frequently Asked Questions

What is the severity of CVE-2025-21499?
CVE-2025-21499 is classified as a high-severity vulnerability.
How do I fix CVE-2025-21499?
To fix CVE-2025-21499, upgrade MySQL Server to version 8.4.4 or later, or 9.1.1 or later.
What systems are impacted by CVE-2025-21499?
CVE-2025-21499 affects Oracle MySQL Server versions 8.4.3 and prior, and 9.1.0 and prior.
What can an attacker do with CVE-2025-21499?
An attacker exploiting CVE-2025-21499 can compromise the MySQL Server if they have high privileges and network access.
Is there a workaround for CVE-2025-21499?
There is no official workaround for CVE-2025-21499; updating to a secure version is recommended.

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