REDHAT-BUG-2505927: Medium severity Oracle MySQL Server vulnerability

Q: Which deployments are affected?

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

Q: What access does an attacker need to exploit this issue?

An attacker must be highly privileged and have network access through multiple protocols. The CVSS vector indicates no user interaction is required, but exploitation has high attack complexity and requires high privileges.

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

A successful attack can cause MySQL Server or MySQL Cluster to hang or crash repeatedly, resulting in a complete denial of service. The stated impacts are limited to availability; confidentiality and integrity impacts are listed as none.

Published Jul 21, 2026

Updated

Vulnerability in the MySQL Server, MySQL Cluster product of Oracle MySQL (component: Server: Clone Plugin). 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. Difficult to exploit vulnerability allows high 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 4.4 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:H/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.

Upgrade
Upgrade Oracle MySQL Server/Cluster (Clone Plugin) to a version that resolves this vulnerability.
Fixed in 8.4.10
Upgrade
Upgrade Oracle MySQL Server/Cluster (Clone Plugin) to a version that resolves this vulnerability.
Fixed in 9.7.1
Upgrade
Upgrade Oracle MySQL Cluster (Clone Plugin) to a version that resolves this vulnerability.
Fixed in 8.0.47
Compensating control
Mitigate the availability impact by limiting network access to the MySQL Server/MySQL Cluster ports (the vulnerable Clone Plugin) to only required clients/protocols.

Event History

Jul 21, 2026

Data Sourced

via Red Hat·10:53 PM

DescriptionSeverityAffected Software

Frequently Asked Questions

Which deployments are affected?

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

What access does an attacker need to exploit this issue?

An attacker must be highly privileged and have network access through multiple protocols. The CVSS vector indicates no user interaction is required, but exploitation has high attack complexity and requires high privileges.

What is the practical impact of a successful attack?

A successful attack can cause MySQL Server or MySQL Cluster to hang or crash repeatedly, resulting in a complete denial of service. The stated impacts are limited to availability; confidentiality and integrity impacts are listed as none.

REDHAT-BUG-2505927: Medium severity Oracle MySQL Server vulnerability

Affected Software

Remediation

Event History

Frequently Asked Questions

Which deployments are affected?

What access does an attacker need to exploit this issue?

What is the practical impact of a successful attack?

Company

Resources

Contact

Frequently Asked Questions

Which deployments are affected?

What access does an attacker need to exploit this issue?

What is the practical impact of a successful attack?