CVE-2025-48554
📋 TL;DR
This vulnerability in Android's DevicePolicyManagerService allows a local attacker to cause persistent denial of service through a logic error when handling package changes. It affects Android devices and requires user interaction for exploitation, meaning an attacker needs to trick a user into performing a specific action. No additional privileges are needed beyond standard user access.
💻 Affected Systems
- Android
📦 What is this software?
Android by Google
Android by Google
Android by Google
Android by Google
⚠️ Risk & Real-World Impact
Worst Case
Device becomes persistently unusable requiring factory reset, potentially causing data loss and extended downtime for affected users.
Likely Case
Temporary device instability or application crashes that disrupt normal operations until the device is restarted or the condition clears.
If Mitigated
Minimal impact with proper user education about suspicious app installations and prompt patching.
🎯 Exploit Status
Requires user interaction (such as installing a malicious app) and knowledge of the specific logic error to trigger the condition.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Android Security Patch Level September 2025 or later
Vendor Advisory: https://source.android.com/security/bulletin/2025-09-01
Restart Required: No
Instructions:
1. Check for system updates in Settings > System > System update. 2. Apply the September 2025 Android security patch. 3. Verify the patch level in Settings > About phone > Android version.
🔧 Temporary Workarounds
Restrict app installations
AndroidConfigure device to only allow app installations from trusted sources like Google Play Store and disable unknown sources.
Settings > Security > Install unknown apps > Disable for all apps
🧯 If You Can't Patch
- Implement mobile device management (MDM) policies to restrict app installations and monitor for suspicious package changes.
- Educate users about risks of installing apps from untrusted sources and implement application allowlisting where possible.
🔍 How to Verify
Check if Vulnerable:
Check Android security patch level in Settings > About phone > Android version. If before September 2025, device is likely vulnerable.Check Version:
adb shell getprop ro.build.version.security_patchVerify Fix Applied:
Confirm Android security patch level shows September 2025 or later in Settings > About phone > Android version.📡 Detection & Monitoring
Log Indicators:
- Multiple DevicePolicyManagerService exceptions related to package changes
- Unexpected package installation or removal events
Network Indicators:
- No network indicators as this is a local vulnerability
SIEM Query:
Device logs showing 'DevicePolicyManagerService' errors with stack traces referencing handlePackagesChanged method