CVE-2026-61128
Received Received - Intake

Denial of Service in MySQL Server

Publication date: 2026-07-21

Last updated on: 2026-07-21

Assigner: Oracle

Description
Vulnerability in the MySQL Server, MySQL Cluster product of Oracle MySQL (component: Server: Optimizer). Supported versions that are affected are MySQL Server: 9.7.0-9.7.1; MySQL Cluster: 9.7.0-9.7.1. Easily exploitable 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 4.9 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H).

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Meta Information

Published
2026-07-21
Last Modified
2026-07-21
Generated
2026-07-22
AI Q&A
2026-07-22
EPSS Evaluated
N/A
NVD
CVE-2026-61128

Affected Vendors & Products

Showing 2 associated CPEs
Vendor Product Version / Range
oracle mysql_server From 9.7.0 (inc) to 9.7.1 (inc)
oracle mysql_cluster From 9.7.0 (inc) to 9.7.1 (inc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-UNKNOWN

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Executive Summary

This is a vulnerability in MySQL Server and MySQL Cluster versions 9.7.0 to 9.7.1. It affects the Server: Optimizer component. A high-privileged attacker with network access can exploit it to cause a denial of service (DOS) by making the server hang or crash repeatedly.

Impact Analysis

If you use MySQL Server or MySQL Cluster versions 9.7.0 to 9.7.1, an attacker could disrupt database operations by causing crashes or hangs. This leads to downtime and potential loss of availability for your applications relying on MySQL.

Compliance Impact

This vulnerability primarily impacts availability. While it does not directly expose data, prolonged downtime could lead to non-compliance with regulations like GDPR or HIPAA that require timely access to personal or health data. Ensure proper mitigation to maintain compliance.

Mitigation Strategies

Upgrade MySQL Server and MySQL Cluster to versions beyond 9.7.1 to address the vulnerability. Apply the latest patches from Oracle as soon as they are available.

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