CVE-2025-48574: Google Android Privilege Escalation Flaw

CVE-2025-48574 Overview

A privilege escalation vulnerability exists in Google Android's DisplayPolicy.java within the validateAddingWindowLw function. The vulnerability stems from a missing permission check that allows malicious applications to intercept drag-and-drop events, potentially leading to local escalation of privilege. Notably, no user interaction is required for exploitation, and no additional execution privileges are needed beyond installing a malicious application.

Critical Impact

A malicious Android application could exploit this vulnerability to intercept drag-and-drop events and escalate privileges locally without any user interaction, potentially compromising sensitive data being transferred between applications.

Affected Products

• Google Android 14.0
• Google Android 15.0
• Google Android 16.0

Discovery Timeline

• 2026-03-02 - CVE CVE-2025-48574 published to NVD
• 2026-03-03 - Last updated in NVD database

Technical Details for CVE-2025-48574

Vulnerability Analysis

This vulnerability is classified under CWE-862 (Missing Authorization), indicating that the affected code path fails to properly verify that a requesting application has the necessary permissions before allowing access to sensitive functionality. The validateAddingWindowLw function in DisplayPolicy.java is responsible for validating window additions in the Android display system.

When a window is added that can receive drag-and-drop events, the function should verify that the calling application has appropriate permissions. However, the missing permission check allows any installed application to register for and intercept these events. This is particularly concerning because drag-and-drop operations often transfer sensitive data between applications, such as files, text content, or other user data.

The vulnerability has a local attack vector, meaning an attacker must have the ability to install and execute a malicious application on the target device. Once installed, the malicious app requires no special privileges and can exploit the vulnerability without any user interaction, making it a significant threat for targeted attacks via social engineering or supply chain compromise.

Root Cause

The root cause is a missing authorization check in the validateAddingWindowLw method of DisplayPolicy.java. The Android window management system fails to verify that applications requesting to intercept drag-and-drop events have the appropriate permissions. This oversight allows unprivileged applications to register window overlays or handlers that can capture inter-application data transfers.

Attack Vector

The attack vector is local, requiring the attacker to install a malicious application on the target Android device. The attack scenario proceeds as follows:

1. A malicious application is installed on the victim's device (via social engineering, malicious app stores, or supply chain attacks)
2. The application registers a window that intercepts drag-and-drop events without triggering permission checks
3. When the user performs drag-and-drop operations between legitimate applications, the malicious app captures the transferred data
4. The captured data can be exfiltrated or used for further privilege escalation

Since no user interaction is required for the exploit to work and the application needs no special privileges, the vulnerability represents a significant threat to user privacy and device security. For detailed technical information, refer to the Android Security Bulletin March 2026.

Detection Methods for CVE-2025-48574

Indicators of Compromise

• Applications registering unusual window types or overlays that can intercept system events
• Unexpected data access patterns from applications that don't typically handle drag-and-drop functionality
• Applications with minimal permissions attempting to access window management functions

Detection Strategies

• Monitor for applications calling WindowManager APIs to add windows with drag-and-drop interception capabilities
• Implement behavioral analysis to detect apps intercepting inter-application data transfers
• Review application permission requests and flag apps with suspicious window management behavior
• Deploy mobile threat defense solutions that can identify apps exploiting missing authorization checks

Monitoring Recommendations

• Enable detailed logging on Android devices to track window management API calls
• Utilize SentinelOne Mobile Threat Defense to monitor for privilege escalation attempts
• Regularly audit installed applications and their behavior patterns on managed devices
• Implement network monitoring to detect unusual data exfiltration following drag-and-drop interception

How to Mitigate CVE-2025-48574

Immediate Actions Required

• Apply the latest Android security patches from the March 2026 security bulletin immediately
• Review installed applications on all Android devices running versions 14.0, 15.0, and 16.0
• Remove any suspicious or unnecessary applications that may exploit this vulnerability
• Enable Google Play Protect to help detect potentially harmful applications

Patch Information

Google has addressed this vulnerability in the Android Security Bulletin March 2026. Organizations should ensure that all managed Android devices are updated to security patch levels dated 2026-03-01 or later. Device manufacturers and carriers may have specific update timelines, so coordinate with your mobile device management (MDM) provider to ensure timely deployment.

Workarounds

• Restrict application installations to trusted sources only (Google Play Store with Play Protect enabled)
• Implement MDM policies that prevent sideloading of applications on enterprise devices
• Educate users about the risks of installing applications from unknown sources
• Consider temporarily disabling drag-and-drop functionality on highly sensitive devices until patches are applied

# ADB command to check current security patch level
adb shell getprop ro.build.version.security_patch

# Verify device is running patched version (should show 2026-03-01 or later)
# If patch level is older, initiate system update:
# Settings > System > System update > Check for update