CVE-2025-22403
📋 TL;DR
This critical vulnerability in Android's Bluetooth stack allows remote attackers to execute arbitrary code without user interaction. A use-after-free bug in the SDP discovery component enables remote code execution with no additional privileges required. All Android devices with vulnerable Bluetooth implementations are affected.
💻 Affected Systems
- Android
📦 What is this software?
Android by Google
⚠️ Risk & Real-World Impact
Worst Case
Complete device compromise allowing attacker to install malware, steal data, or join botnets with full system access.
Likely Case
Remote code execution leading to data theft, surveillance, or ransomware deployment on vulnerable devices.
If Mitigated
Limited impact if Bluetooth is disabled or devices are isolated from untrusted networks.
🎯 Exploit Status
No user interaction required; attacker needs to be within Bluetooth range or able to send malicious packets to vulnerable device
🛠️ 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 Android system updates in Settings > System > System update. 2. Install March 2025 security patch or later. 3. Reboot device after installation.
🔧 Temporary Workarounds
Disable Bluetooth
androidTurn off Bluetooth to prevent exploitation
adb shell settings put global bluetooth_on 0
Settings > Connected devices > Connection preferences > Bluetooth > Toggle off
Restrict Bluetooth visibility
androidSet Bluetooth to non-discoverable mode
adb shell settings put global bluetooth_discoverability 0
Settings > Connected devices > Connection preferences > Bluetooth > Device name > Turn off 'Make device discoverable'
🧯 If You Can't Patch
- Disable Bluetooth completely when not in use
- Implement network segmentation to isolate Bluetooth-enabled devices from critical systems
🔍 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 March 2025 or later date📡 Detection & Monitoring
Log Indicators:
- Unusual Bluetooth connection attempts
- SDP service search anomalies in Bluetooth logs
- Crash reports from com.android.bluetooth
Network Indicators:
- Malformed SDP packets in Bluetooth traffic
- Unexpected Bluetooth pairing requests from unknown devices
SIEM Query:
source="android_logs" AND (process="com.android.bluetooth" AND (message="*sdp_snd_service_search_req*" OR message="*use-after-free*" OR message="*segmentation fault*"))