CVE-2023-21281

Severity: high (CVSS 7.8 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: 2023-08-14 · updated 2026-06-17

Description

In multiple functions of KeyguardViewMediator.java, there is a possible failure to lock after screen timeout due to a logic error in the code. This could lead to local escalation of privilege across users with no additional execution privileges needed. User interaction is not needed for exploitation.

Affected products

Android: 11.0, 12.0, 12.1, 13.0

References

https://android.googlesource.com/platform/frameworks/base/+/badb243574d7fca9aa89152d9d25eeb4f8615385
https://source.android.com/security/bulletin/2023-08-01
https://android.googlesource.com/platform/frameworks/base/+/badb243574d7fca9aa89152d9d25eeb4f8615385
https://source.android.com/security/bulletin/2023-08-01

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