Advisory Published

CVE-2023-21402: Input Validation

First published: Mon Dec 04 2023(Updated: )

In MMU_UnmapPages of mmu_common.c, there is a possible out of bounds read due to improper input validation. 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

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Frequently Asked Questions

  • What is CVE-2023-21402?

    CVE-2023-21402 is a vulnerability found in Google Android that could allow an attacker to execute arbitrary code on a targeted device.

  • How severe is CVE-2023-21402?

    CVE-2023-21402 has a severity rating of high with a value of 7.

  • How can I fix CVE-2023-21402?

    To fix CVE-2023-21402, it is recommended to apply the security patch provided by Google for your Android device.

  • Where can I find more information about CVE-2023-21402?

    You can find more information about CVE-2023-21402 in the official Android Security Bulletin for December 2023.

  • Is my Android device affected by CVE-2023-21402?

    If you are using an unpatched version of Google Android, your device may be affected by CVE-2023-21402. It is advisable to check for updates and apply them as soon as possible.


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