CVE-2021-39621: High severity Google Android vulnerability

Published Jan 4, 2022

Updated

In sendLegacyVoicemailNotification of LegacyModeSmsHandler.java, there is a possible permissions bypass due to an unsafe PendingIntent. 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-12 Android-9Android ID: A-185126319

Affected Software

5 affected components

Google Android=9.0

Google Android=10.0

Google Android=11.0

Google Android=12.0

Google Android

Event History

Jan 4, 2022

CVE Published

via Android·12:00 AM

Data Sourced

via Android·12:00 AM

SeverityWeaknessAffected Software

Jan 14, 2022

CVE Published

via MITRE·07:10 PM

Data Sourced

via MITRE·07:10 PM

DescriptionWeakness

Frequently Asked Questions

What is the severity of CVE-2021-39621?

CVE-2021-39621 is classified as a high severity vulnerability due to potential local escalation of privilege.

How do I fix CVE-2021-39621?

To mitigate CVE-2021-39621, users should update their Android devices to the latest security patches provided by Google.

What versions of Android are affected by CVE-2021-39621?

CVE-2021-39621 affects Android versions 9.0, 10.0, 11.0, and 12.0.

Is user interaction required for exploiting CVE-2021-39621?

No, user interaction is not needed for exploiting CVE-2021-39621, making it particularly critical.

What type of vulnerability is CVE-2021-39621?

CVE-2021-39621 is a permissions bypass vulnerability involving the PendingIntent in the LegacyModeSmsHandler.