CVE-2023-21269

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: 2023-08-14 · updated 2026-06-17
Weakness: CWE-269

Description

In startActivityInner of ActivityStarter.java, there is a possible way to launch an activity into PiP mode from the background due to BAL bypass. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.

Affected products

Android: 13.0

References

https://android.googlesource.com/platform/frameworks/base/+/70ec64dc5a2a816d6aa324190a726a85fd749b30
https://source.android.com/security/bulletin/2023-08-01
https://android.googlesource.com/platform/frameworks/base/+/70ec64dc5a2a816d6aa324190a726a85fd749b30
https://source.android.com/security/bulletin/2023-08-01

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