CVE-2025-48603
📋 TL;DR
This vulnerability in Android's InputMethodInfo component allows local resource exhaustion leading to permanent denial of service. It affects Android devices where attackers can trigger the flaw without user interaction or elevated privileges. The impact is limited to local denial of service on affected devices.
💻 Affected Systems
- Android OS
📦 What is this software?
Android by Google
Android by Google
Android by Google
Android by Google
⚠️ Risk & Real-World Impact
Worst Case
Permanent denial of service on affected Android devices, requiring factory reset to recover functionality
Likely Case
Temporary service disruption on individual devices until reboot or system cleanup
If Mitigated
Minimal impact with proper patching and monitoring for resource exhaustion patterns
🎯 Exploit Status
Exploitation requires local access or malicious app; no user interaction needed but local execution required
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Android security patch level December 2025 or later
Vendor Advisory: https://source.android.com/security/bulletin/2025-12-01
Restart Required: Yes
Instructions:
1. Check for Android system updates in Settings > System > System update. 2. Install December 2025 security patch or later. 3. Reboot device after installation.
🔧 Temporary Workarounds
Restrict app installation
androidPrevent installation of untrusted applications that could exploit this vulnerability
Monitor resource usage
androidMonitor system resources for unusual exhaustion patterns
🧯 If You Can't Patch
- Implement strict application vetting and only install apps from trusted sources
- Monitor devices for unusual behavior or performance degradation indicating potential exploitation
🔍 How to Verify
Check if Vulnerable:
Check Android security patch level in Settings > About phone > Android version > Security patch levelCheck Version:
adb shell getprop ro.build.version.security_patchVerify Fix Applied:
Verify security patch level shows December 2025 or later date📡 Detection & Monitoring
Log Indicators:
- Unusual resource exhaustion in system logs
- Repeated InputMethodInfo service failures
Network Indicators:
- None - this is a local vulnerability
SIEM Query:
Search for system resource exhaustion events or InputMethodInfo service crashes in Android device logs