CVE-2023-20951: Google Android

Critical severity, CVSS 9.8. EPSS: 0.5% chance of exploitation in the next 30 days.

In gatt_process_prep_write_rsp of gatt_cl.cc, there is a possible out of bounds write due to a missing bounds check. This could lead to remote code execution with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-11 Android-12 Android-12L Android-13Android ID: A-258652631

Affected products

• Google Android: version 11.0 only; version 12.0 only; version 12.1 only; version 13.0 only

Published 2023-03-24. Last modified 2026-06-17.