CVE-2021-0920
Android Kernel Race Condition Vulnerability
What is affected
| Vendor | Android |
|---|---|
| Product | Kernel |
| Weakness | CWE-362, CWE-416 |
The vulnerability
Android kernel contains a race condition, which allows for a use-after-free vulnerability. Exploitation can allow for privilege escalation.
Required action
Apply updates per vendor instructions.
US federal civilian agencies were required to act by 13 June 2022 under BOD 22-01. The deadline is a compliance date, not a measure of severity — it says nothing about how dangerous the flaw is to anyone else.
Where this comes from
Every field on this page is taken from the CISA Known Exploited Vulnerabilities catalog, last synced 11 Nov 2026, 21:30. Nothing here is our own assessment. For the technical scoring, see the NVD record below.
More from Android
Android Framework
Android Framework Integer Overflow Vulnerability
CVE-2025-48633Android Framework
Android Framework Information Disclosure Vulnerability
CVE-2025-48572Android Framework
Android Framework Privilege Escalation Vulnerability
CVE-2025-48543Android Runtime
Android Runtime Use-After-Free Vulnerability