ZDI-CAN-13266: MySQL memcached Plugin Integer Underflow Remote Code Execution Vulnerability

This vulnerability allows remote attackers to execute arbitrary code on affected installations of MySQL. Authentication is not required to exploit this vulnerability. The specific flaw exists within the processing of Authentication commands in the memcached plugin. The issue results from the lack of proper validation of user-supplied data, which can result in an integer underflow before writing to memory. An attacker can leverage this vulnerability to execute code in the context of the service account.

Affected Software

1 affected component
ORACLE MySQL

Event History

Mar 25, 2025
Advisory Published
via ZDI·02:26 AM

Frequently Asked Questions

1

What is the severity of ZDI-CAN-13266?

The severity of ZDI-CAN-13266 is critical due to its potential for remote code execution without authentication.

2

How do I fix ZDI-CAN-13266?

To fix ZDI-CAN-13266, update your MySQL installation to the latest version that addresses this vulnerability.

3

What are the consequences of exploiting ZDI-CAN-13266?

Exploiting ZDI-CAN-13266 can lead to unauthorized remote code execution, potentially compromising the entire system.

4

Which software versions are affected by ZDI-CAN-13266?

ZDI-CAN-13266 affects certain versions of MySQL, specifically those utilizing the memcached plugin.

5

Is authentication required to exploit ZDI-CAN-13266?

No, authentication is not required to exploit ZDI-CAN-13266, making it particularly dangerous.

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