CVE-2023-21245

Severity: high (CVSS 7.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.1% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2023-07-13 · updated 2026-06-17
Weakness: CWE-863

Description

In showNextSecurityScreenOrFinish of KeyguardSecurityContainerController.java, there is a possible way to access the lock screen during device setup due to a logic error in the code. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.

Affected products

Android: 11.0, 12.0, 13.0, 13.1

References

https://android.googlesource.com/platform/frameworks/base/+/a33159e8cb297b9eee6fa5c63c0e343d05fad622
https://source.android.com/security/bulletin/2023-07-01
https://android.googlesource.com/platform/frameworks/base/+/a33159e8cb297b9eee6fa5c63c0e343d05fad622
https://source.android.com/security/bulletin/2023-07-01

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