CVE-2021-39640: Google Android

High severity, CVSS 7.8. EPSS: 0.1% chance of exploitation in the next 30 days.

In __dwc3_gadget_ep0_queue of ep0.c, there is a possible out of bounds write due to improper locking. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-157294279References: N/A

Affected products

• Google Android: affected versions not specified

Published 2021-12-15. Last modified 2026-06-17.