What is the severity of CVE-2025-21525?

CVE-2025-21525 has been classified with a high severity rating due to the ease of exploitation by a high-privileged attacker.

How do I fix CVE-2025-21525?

To fix CVE-2025-21525, users should upgrade MySQL Server to version 8.0.40 or later, 8.4.3 or later, or 9.0.2 or later.

What versions of MySQL Server are affected by CVE-2025-21525?

CVE-2025-21525 affects MySQL Server versions 8.0.39 and prior, 8.4.2 and prior, and 9.0.1 and prior.

Who can exploit CVE-2025-21525?

CVE-2025-21525 can be exploited by high-privileged attackers with network access via multiple protocols.

What impact does CVE-2025-21525 have on MySQL Server?

CVE-2025-21525 can lead to unauthorized access and compromise of MySQL Server, which can result in data breaches and loss of confidentiality.

Vulnerability/
CVE-2025-21525

medium

4.9

CWE

770

EPSS

0.043%

21/1/2025

22/1/2025

CVE-2025-21525

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 8.0.39 and prior, 8.4.2 and prior and 9.0.1 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	<8.0.40<8.4.3<9.0.2

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Reference Links

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

Frequently Asked Questions

What is the severity of CVE-2025-21525?
CVE-2025-21525 has been classified with a high severity rating due to the ease of exploitation by a high-privileged attacker.
How do I fix CVE-2025-21525?
To fix CVE-2025-21525, users should upgrade MySQL Server to version 8.0.40 or later, 8.4.3 or later, or 9.0.2 or later.
What versions of MySQL Server are affected by CVE-2025-21525?
CVE-2025-21525 affects MySQL Server versions 8.0.39 and prior, 8.4.2 and prior, and 9.0.1 and prior.
Who can exploit CVE-2025-21525?
CVE-2025-21525 can be exploited by high-privileged attackers with network access via multiple protocols.
What impact does CVE-2025-21525 have on MySQL Server?
CVE-2025-21525 can lead to unauthorized access and compromise of MySQL Server, which can result in data breaches and loss of confidentiality.

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