CVE-2026-49903
Received Received - Intake

ClusterRenderingService Overlay Display Manipulation via Permission Bypass

Publication date: 2026-11-02

Last updated on: 2026-11-02

Assigner: Android (associated with Google Inc. or Open Handset Alliance)

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.

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Meta Information

Published
2026-11-02
Last Modified
2026-11-02
Generated
2026-11-03
AI Q&A
2026-11-03
EPSS Evaluated
N/A
NVD
CVE-2026-49903

Affected Vendors & Products

Showing 5 associated CPEs
Vendor Product Version / Range
Google Android 17
Google Android 16-qpr2
Google Android 16
Google Android 15
Google Android 14

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Exploitability

CWE
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KEV
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CWE ID Description
CWE-UNKNOWN

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Executive Summary

CVE-2026-49903 is a high-severity Elevation of Privilege (EoP) vulnerability in Android Automotive OS. It involves the ClusterRenderingService.dump() method, which can be exploited by attackers with specific permissions to write arbitrary values to system settings. This bypasses normal security restrictions and allows persistent creation of system overlay displays and key event injection into the cluster UI.

Impact Analysis

This vulnerability could allow attackers to gain elevated privileges on your device. They could create persistent system overlays or inject key events, potentially enabling unauthorized actions or monitoring of your interactions with the vehicle's system. This poses risks to both security and privacy.

Mitigation Strategies
  • Update your Android Automotive OS device to the November 2026 security patch level (2026-11-05 or later) to address CVE-2026-49903.
  • Ensure your device is running a supported version (14, 15, 16, 16-qpr2, or 17) and apply the latest updates from the manufacturer.

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