CVE-2025-22407
📋 TL;DR
This CVE describes a use-after-free vulnerability in Android's Bluetooth stack that allows arbitrary code execution without user interaction. It affects Android devices with vulnerable Bluetooth implementations and could lead to local information disclosure even without elevated privileges.
💻 Affected Systems
- Android devices with Bluetooth functionality
📦 What is this software?
Android by Google
⚠️ Risk & Real-World Impact
Worst Case
An attacker could execute arbitrary code on the device, potentially gaining full control over the system and accessing sensitive data stored locally.
Likely Case
Local information disclosure where an attacker could read memory contents from the Bluetooth process, potentially exposing sensitive data or cryptographic keys.
If Mitigated
With proper security controls like SELinux and process isolation, impact would be limited to the Bluetooth service context only.
🎯 Exploit Status
Exploitation requires sending specially crafted Bluetooth HID packets. No user interaction needed, but attacker needs Bluetooth access to the device.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Android Security Patch Level March 2025 or later
Vendor Advisory: https://source.android.com/security/bulletin/2025-03-01
Restart Required: No
Instructions:
1. Apply the March 2025 Android security patch. 2. Update affected devices through system updates. 3. For enterprise devices, push updates through MDM solutions. 4. Verify patch installation by checking security patch level.
🔧 Temporary Workarounds
Disable Bluetooth when not in use
AndroidTurn off Bluetooth functionality to prevent exploitation attempts
adb shell settings put global bluetooth_on 0
Settings > Connected devices > Connection preferences > Bluetooth > Turn off
Restrict Bluetooth visibility
AndroidSet Bluetooth to non-discoverable mode to reduce attack surface
adb shell settings put global bluetooth_discoverability 0
Settings > Connected devices > Connection preferences > Bluetooth > Device name > Turn off visibility
🧯 If You Can't Patch
- Implement network segmentation to isolate Bluetooth traffic
- Deploy endpoint detection and response (EDR) solutions to monitor for suspicious Bluetooth activity
🔍 How to Verify
Check if Vulnerable:
Check Android security patch level in Settings > About phone > Android version > Security patch level. If date is before 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. Check Bluetooth functionality works normally after patch.📡 Detection & Monitoring
Log Indicators:
- Unusual Bluetooth HID connection attempts
- Bluetooth service crashes or restarts
- Memory access violations in Bluetooth process logs
Network Indicators:
- Suspicious Bluetooth HID protocol traffic patterns
- Multiple failed Bluetooth pairing attempts from unknown devices
SIEM Query:
source="android_logs" AND (process="com.android.bluetooth" OR service="bluetooth") AND (event="crash" OR event="memory_violation" OR message="*hidd_conn*" OR message="*use-after-free*")