CVE-2021-0688: Race Condition

Published Sep 7, 2021

Updated

In lockNow of PhoneWindowManager.java, there is a possible lock screen bypass due to a race condition. This could lead to local escalation of privilege with User execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-10 Android-11 Android-8.1 Android-9Android ID: A-161149543

Affected Software

5 affected components

Google Android=8.1

Google Android=9.0

Google Android=10.0

Google Android=11.0

Google Android

Remediation

Patch Available

https://source.android.com/security/bulletin/2021-09-01

Event History

Sep 7, 2021

CVE Published

via Android·12:00 AM

Data Sourced

via Android·12:00 AM

SeverityWeaknessAffected Software

Oct 6, 2021

CVE Published

via MITRE·02:10 PM

Data Sourced

via MITRE·02:10 PM

DescriptionWeakness

Frequently Asked Questions

What is the severity of CVE-2021-0688?

CVE-2021-0688 is classified as a high-severity vulnerability due to its potential for local privilege escalation.

How do I fix CVE-2021-0688?

To mitigate CVE-2021-0688, update your Android device to the latest security patch provided by the manufacturer.

What versions of Android are affected by CVE-2021-0688?

CVE-2021-0688 affects Android versions 8.1, 9.0, 10.0, and 11.0.

What type of vulnerability is CVE-2021-0688?

CVE-2021-0688 is a race condition vulnerability that allows bypassing the lock screen.

Is user interaction required to exploit CVE-2021-0688?

No, user interaction is not needed for exploitation of CVE-2021-0688.