Description
The `ClusterRenderingService.dump()` method, accessible to processes holding `android.permission.DUMP` and `android.permission.PACKAGE_USAGE_STATS`, acts as a confused deputy. It allows attackers to write arbitrary values to `Settings.Global.OVERLAY_DISPLAY_DEVICES`, an operation normally requiring `android.permission.WRITE_SECURE_SETTINGS`, enabling persistent creation of system overlay displays and injection of key events into the cluster UI.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Android | 17, 16-qpr2, 16, 15, 14 | — |
Advisories 1
- WID-SEC-2026-4288 Android Patchday November 2026 (Google Android, Automotive OS and XR): Mehrere Schwachstellen BSI CERT-Bund (WID) · Nov 10, 2026