CVE-2021-0963

Severity: high (CVSS 7.1 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2021-12-15 · updated 2026-06-17
Weakness: CWE-1021

Description

In onCreate of KeyChainActivity.java, there is a possible way to use an app certificate stored in keychain due to a tapjacking/overlay attack. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is needed for exploitation.Product: AndroidVersions: Android-10 Android-11 Android-12 Android-9Android ID: A-199754277

Affected products

Android: 9.0, 10.0, 11.0, 12.0

References

https://source.android.com/security/bulletin/2021-12-01
https://source.android.com/security/bulletin/2021-12-01

Get alerted when CVE-2021-0963 or the next vulnerability affects your stack