REDHAT-BUG-2505310: Medium severity Oracle MySQL Server vulnerability

Q: Who can exploit this issue?

An attacker needs network access to the MySQL Server or MySQL Cluster instance and low-privileged access. No user interaction is required, and the attack complexity is low.

Q: What is the potential impact of a successful attack?

A successful attack can cause the affected MySQL Server or MySQL Cluster service to hang or crash repeatedly, resulting in a complete denial of service. The provided CVSS vector indicates no direct confidentiality or integrity impact.

Q: Which product versions are affected?

Affected MySQL Server versions are 8.4.0 through 8.4.10 and 9.7.0 through 9.7.1. Affected MySQL Cluster versions are 8.0.0 through 8.0.47, 8.4.0 through 8.4.10, and 9.7.0 through 9.7.1.

Published Jul 21, 2026

Updated

Vulnerability in the MySQL Server, MySQL Cluster product of Oracle MySQL (component: Server: JSON). Supported versions that are affected are MySQL Server: 8.4.0-8.4.10, 9.7.0-9.7.1; MySQL Cluster: 8.0.0-8.0.47, 8.4.0-8.4.10 and 9.7.0-9.7.1. Easily exploitable vulnerability allows low privileged attacker with network access via multiple protocols to compromise MySQL Server, MySQL Cluster. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server, MySQL Cluster. CVSS 3.1 Base Score 6.5 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H).

Affected Software

2 affected components

Oracle MySQL Server>=8.4.0<=8.4.10, >=9.7.0<=9.7.1

Oracle MySQL Cluster>=8.0.0<=8.0.47, >=8.4.0<=8.4.10, >=9.7.0<=9.7.1

Remediation

Recommended actions to resolve this vulnerability, in priority order.

Compensating control
Mitigate availability impact by restricting network access to the MySQL Server/MySQL Cluster services (e.g., limit inbound connectivity on the MySQL ports to trusted hosts only), since the vulnerability is remotely exploitable over multiple protocols.

Event History

Jul 21, 2026

Data Sourced

via Red Hat·10:26 PM

DescriptionSeverityAffected Software

Frequently Asked Questions

Who can exploit this issue?

An attacker needs network access to the MySQL Server or MySQL Cluster instance and low-privileged access. No user interaction is required, and the attack complexity is low.

What is the potential impact of a successful attack?

A successful attack can cause the affected MySQL Server or MySQL Cluster service to hang or crash repeatedly, resulting in a complete denial of service. The provided CVSS vector indicates no direct confidentiality or integrity impact.

Which product versions are affected?

Affected MySQL Server versions are 8.4.0 through 8.4.10 and 9.7.0 through 9.7.1. Affected MySQL Cluster versions are 8.0.0 through 8.0.47, 8.4.0 through 8.4.10, and 9.7.0 through 9.7.1.

REDHAT-BUG-2505310: Medium severity Oracle MySQL Server vulnerability

Affected Software

Remediation

Event History

Frequently Asked Questions

Who can exploit this issue?

What is the potential impact of a successful attack?

Which product versions are affected?

Company

Resources

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Frequently Asked Questions

Who can exploit this issue?

What is the potential impact of a successful attack?

Which product versions are affected?