CVE-2021-39675: Google Android

Critical severity, CVSS 9.8. EPSS: 5.9% chance of exploitation in the next 30 days.

In GKI_getbuf of gki_buffer.cc, there is a possible out of bounds write due to a heap buffer overflow. This could lead to remote escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-12Android ID: A-205729183

Affected products

• Google Android: version 12.0 only

Published 2022-02-11. Last modified 2026-06-17.