CVE-2026-47064 Details
Description
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. 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).
A denial-of-service vulnerability has been identified in Oracle MySQL Server and MySQL Cluster, specifically within the Optimizer component. This issue affects MySQL Server versions 8.4.0 through 8.4.10 and 9.7.0 through 9.7.1, as well as MySQL Cluster versions 8.0.0 through 8.0.47, 8.4.0 through 8.4.10, and 9.7.0 through 9.7.1. The vulnerability allows a low-privileged attacker with network access to MySQL Server or MySQL Cluster to cause a hang or a frequently repeatable crash, leading to a complete denial-of-service condition.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Jul 23, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://www.oracle.com/security-alerts/cpujul2026.html | [email protected] | Vendor Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-284 | Improper Access Control | CISA-ADP |
Affected Products
| Product | Versions |
|---|---|
| oracle mysql server | >= 8.4.0, <= 8.4.10 9.7.0 9.7.1 |
CPE
Remediation
| |
| oracle mysql cluster | >= 8.0.0, <= 8.0.47 >= 8.4.0, <= 8.4.10 9.7.0 9.7.1 |
CPE
Remediation
| |
Change History
3 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jul 27, 2026 | Initial Analysis | [email protected] |
| Jul 23, 2026 | CVE Modified | CISA-ADP |
| Jul 21, 2026 | New CVE Received | [email protected] |