Advisory Published

CVE-2023-21164: Use After Free

First published: Mon Dec 04 2023(Updated: )

In DevmemIntMapPMR of devicemem_server.c, there is a possible arbitrary code execution due to a use after free. This could lead to local escalation of privilege in the kernel with no additional execution privileges needed. User interaction is not needed for exploitation.


Affected SoftwareAffected VersionHow to fix
Google Android
Google Android

Never miss a vulnerability like this again

Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.

Frequently Asked Questions

  • What is the severity of CVE-2023-21164?

    The severity of CVE-2023-21164 is considered high.

  • How does CVE-2023-21164 affect Google Android?

    CVE-2023-21164 allows for elevation of privilege on Google Android devices.

  • Is there a fix available for CVE-2023-21164?

    Yes, you can refer to the following link for information on the available fix: [Android Security Bulletin - December 2023](

  • Are there any additional references related to CVE-2023-21164?

    Yes, you can find more information about CVE-2023-21164 in the [Android Security Bulletin - December 2023]( and [Android Security Bulletin - December 2023](


SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
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.
© 2024 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203