CVE-2023-21913: Medium severity Oracle MySQL Server vulnerability

Published Apr 18, 2023
·
Updated

Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Optimizer). Supported versions that are affected are 8.0.31 and prior. Easily exploitable vulnerability allows high privileged attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server. 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).

Affected Software

1 affected component
Oracle MySQL Server>=8.0.0<=8.0.31

Event History

Apr 18, 2023
CVE Published
via MITRE·07:54 PM
Data Sourced
via MITRE·07:54 PM
DescriptionSeverity
Data Sourced
via NVD·08:15 PM
RemedyDescriptionSeverityAffected Software

Frequently Asked Questions

1

What is the vulnerability ID for this MySQL Server vulnerability?

The vulnerability ID for this MySQL Server vulnerability is CVE-2023-21913.

2

What component of MySQL Server is affected by this vulnerability?

This vulnerability affects the Server: Optimizer component of MySQL Server.

3

Which versions of Oracle MySQL are affected by this vulnerability?

Oracle MySQL versions 8.0.31 and prior are affected by this vulnerability.

4

How can an attacker exploit this vulnerability?

An attacker with network access via multiple protocols can exploit this vulnerability to compromise MySQL Server.

5

What is the severity rating of this vulnerability?

This vulnerability has a severity rating of medium with a CVSS score of 4.9.

6

Where can I find more information about this vulnerability?

You can find more information about this vulnerability at the following references: [NetApp Security Advisory](https://security.netapp.com/advisory/ntap-20230427-0007/) and [Oracle Security Alerts](https://www.oracle.com/security-alerts/cpuapr2023.html).

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2026 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203