What is the severity of CVE-2025-21531?

CVE-2025-21531 is classified as an easily exploitable vulnerability that allows high privileged attackers to compromise the MySQL Server.

Which versions of MySQL Server are affected by CVE-2025-21531?

CVE-2025-21531 affects MySQL Server versions 8.0.40 and prior, 8.4.3 and prior, and 9.1.0 and prior.

How do I fix CVE-2025-21531?

To fix CVE-2025-21531, upgrade your MySQL Server to a version that is not affected, such as 8.0.41 or later, 8.4.4 or later, or 9.1.1 or later.

What type of attacker can exploit CVE-2025-21531?

CVE-2025-21531 can be exploited by high privileged attackers with network access to the MySQL Server.

What component of MySQL Server is affected by CVE-2025-21531?

CVE-2025-21531 affects the InnoDB component of Oracle MySQL Server.

Vulnerability/
CVE-2025-21531

medium

4.9

CWE

770

EPSS

0.043%

21/1/2025

22/1/2025

CVE-2025-21531

First published: Tue Jan 21 2025(Updated: )

Vulnerability in the MySQL Server product of Oracle MySQL (component: InnoDB). Supported versions that are affected are 8.0.40 and prior, 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	<8.0.40<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-2025-21531?
CVE-2025-21531 is classified as an easily exploitable vulnerability that allows high privileged attackers to compromise the MySQL Server.
Which versions of MySQL Server are affected by CVE-2025-21531?
CVE-2025-21531 affects MySQL Server versions 8.0.40 and prior, 8.4.3 and prior, and 9.1.0 and prior.
How do I fix CVE-2025-21531?
To fix CVE-2025-21531, upgrade your MySQL Server to a version that is not affected, such as 8.0.41 or later, 8.4.4 or later, or 9.1.1 or later.
What type of attacker can exploit CVE-2025-21531?
CVE-2025-21531 can be exploited by high privileged attackers with network access to the MySQL Server.
What component of MySQL Server is affected by CVE-2025-21531?
CVE-2025-21531 affects the InnoDB component of Oracle MySQL Server.

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