CVE-2025-36924
📋 TL;DR
This vulnerability allows remote attackers to execute arbitrary code or escalate privileges on affected Android devices through an out-of-bounds write in the LCS management component. It affects Android devices, particularly Google Pixel phones, and can be exploited without user interaction or additional permissions.
💻 Affected Systems
- Android
- Google Pixel devices
📦 What is this software?
Android by Google
⚠️ Risk & Real-World Impact
Worst Case
Complete device compromise allowing attacker to gain root/system privileges, install persistent malware, access sensitive data, and control device functions.
Likely Case
Privilege escalation to system-level access enabling data theft, surveillance capabilities, and persistence mechanisms.
If Mitigated
Limited impact if devices are patched, network segmentation prevents adjacent attacks, and security monitoring detects exploitation attempts.
🎯 Exploit Status
No authentication required but requires proximity/adjacent network positioning. Buffer overflow exploitation requires specific knowledge of memory layout.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: December 2025 Android Security Update or later
Vendor Advisory: https://source.android.com/security/bulletin/pixel/2025-12-01
Restart Required: Yes
Instructions:
1. Navigate to Settings > System > System update
2. Check for and install available updates
3. Restart device after update completes
4. Verify update installed successfully in Settings > About phone > Android version
🔧 Temporary Workarounds
Disable unnecessary location services
androidReduce attack surface by disabling non-essential location-based features
Network segmentation
allIsolate vulnerable devices from untrusted networks and limit Bluetooth/Wi-Fi direct connections
🧯 If You Can't Patch
- Isolate affected devices on separate network segments with strict access controls
- Implement network monitoring for unusual LCS-related traffic patterns and connection attempts
🔍 How to Verify
Check if Vulnerable:
Check Android security patch level in Settings > About phone > Android version. If patch level is earlier than December 2025, device is vulnerable.Check Version:
adb shell getprop ro.build.version.security_patchVerify Fix Applied:
Verify security patch level shows December 2025 or later in Settings > About phone > Android version.📡 Detection & Monitoring
Log Indicators:
- Unusual process crashes in telephony services
- Abnormal memory access patterns in system logs
- Unexpected privilege escalation attempts
Network Indicators:
- Suspicious LCS protocol traffic from unexpected sources
- Anomalous Bluetooth/Wi-Fi direct connection patterns
SIEM Query:
source="android_system" AND (process="telephony" OR component="LCS") AND (event="crash" OR event="memory_violation")