REDHAT-BUG-2504848: Medium severity Oracle MySQL Server vulnerability

Q: Who can exploit this issue?

Exploitation requires a high-privileged attacker with network access to the affected MySQL Server or MySQL Cluster instance through multiple protocols. The attack complexity is high and no user interaction is required.

Q: What is the impact of successful exploitation?

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 confidentiality or integrity impact.

Q: Which 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: Optimizer). 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 MySQL Server to a version that resolves this vulnerability.
Fixed in 8.4.10
Upgrade
Upgrade MySQL Server to a version that resolves this vulnerability.
Fixed in 9.7.1
Upgrade
Upgrade MySQL Cluster to a version that resolves this vulnerability.
Fixed in 8.0.47
Upgrade
Upgrade MySQL Cluster to a version that resolves this vulnerability.
Fixed in 8.4.10
Upgrade
Upgrade MySQL Cluster to a version that resolves this vulnerability.
Fixed in 9.7.1
Compensating control
Mitigate potential availability impact by limiting network access to the MySQL Server/MySQL Cluster ports to only required clients/protocols, since the issue is exploitable over the network via multiple protocols and can cause hang or repeatable crash (complete DoS).

Event History

Jul 21, 2026

Data Sourced

via Red Hat·10:07 PM

DescriptionSeverityAffected Software

Frequently Asked Questions

Who can exploit this issue?

Exploitation requires a high-privileged attacker with network access to the affected MySQL Server or MySQL Cluster instance through multiple protocols. The attack complexity is high and no user interaction is required.

What is the impact of successful exploitation?

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 confidentiality or integrity impact.

Which 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-2504848: Medium severity Oracle MySQL Server vulnerability

Affected Software

Remediation

Event History

Frequently Asked Questions

Who can exploit this issue?

What is the impact of successful exploitation?

Which versions are affected?

Company

Resources

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Frequently Asked Questions

Who can exploit this issue?

What is the impact of successful exploitation?

Which versions are affected?