In multiple methods of NotificationChannel.java, there is a possible desynchronization from persistence due to improper input validation. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is needed for exploitation.
https://source.android.com/security/bulletin/2025-09-01
https://android.googlesource.com/platform/frameworks/base/+/fc5d9b6ef5305263d37404fc3d4afe583a15c62b