CVE-2025-22405
📋 TL;DR
This CVE describes a use-after-free vulnerability in Android's Bluetooth stack that allows local privilege escalation without user interaction. Attackers can execute arbitrary code to gain elevated privileges on affected devices. This affects Android devices with vulnerable Bluetooth implementations.
💻 Affected Systems
- Android devices with Bluetooth functionality
📦 What is this software?
Android by Google
⚠️ Risk & Real-World Impact
Worst Case
Complete device compromise allowing attackers to gain root/system privileges, install persistent malware, access sensitive data, and pivot to other systems.
Likely Case
Local privilege escalation allowing attackers to bypass application sandboxing, access other apps' data, and perform unauthorized system operations.
If Mitigated
Limited impact if devices are fully patched, have Bluetooth disabled, or run in restricted environments with proper security controls.
🎯 Exploit Status
Exploitation requires local access to the device. No user interaction needed once attacker has initial access.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: March 2025 Android Security Patch or later
Vendor Advisory: https://source.android.com/security/bulletin/2025-03-01
Restart Required: Yes
Instructions:
1. Check for system updates in Settings > System > System update. 2. Install March 2025 security patch or later. 3. Reboot device after installation.
🔧 Temporary Workarounds
Disable Bluetooth
androidTemporarily disable Bluetooth functionality to prevent exploitation
adb shell settings put global bluetooth_on 0
Settings > Connected devices > Connection preferences > Bluetooth > Turn off
🧯 If You Can't Patch
- Restrict physical access to devices and implement strict access controls
- Monitor for unusual Bluetooth activity and privilege escalation attempts
🔍 How to Verify
Check if Vulnerable:
Check Android security patch level in Settings > About phone > Android version > Build number. If patch level is earlier than March 2025, device is vulnerable.Check Version:
adb shell getprop ro.build.version.security_patchVerify Fix Applied:
Verify security patch level shows March 2025 or later after applying update.📡 Detection & Monitoring
Log Indicators:
- Unusual Bluetooth service crashes
- Privilege escalation attempts in system logs
- Suspicious process creation with elevated privileges
Network Indicators:
- Unexpected Bluetooth pairing attempts
- Abnormal Bluetooth protocol traffic
SIEM Query:
source="android_system" AND (event="bluetooth_crash" OR event="privilege_escalation")