🤖 CVE-2026-0073 - Wireless ADB Authentication Bypass

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📌 Overview

CVE-2026-0073 is a critical authentication bypass vulnerability in Android’s Wireless ADB (adbd daemon).

An attacker on the same network can bypass the mutual TLS authentication and connect to the device without user approval or previous pairing.

Key Information

🛠 Affected Versions

• Android 14
• Android 15
• Android 16
• Android 16 QPR2

Fixed in: Security patch level 2026-05-01 and later.

🎯 Attack Requirements

• Target device must have Wireless Debugging enabled
• Attacker must be on the same Wi-Fi network
• Developer Options enabled (common on many devices)
• Device has paired with ADB at least once before

⚠️ Impact

• No user interaction required
• Attacker can get a full ADB shell
• Can install apps, extract data, run commands as shell user
• Can escalate further if other vulnerabilities exist
• Particularly dangerous in enterprise, developer, and testing environments

🛡️ Mitigation

• Update to May 2026 security patch or newer
• Turn OFF Wireless Debugging when not in use
• Avoid enabling Wireless ADB on public/untrusted networks
• Use USB ADB instead of Wireless when possible

🧪 PoC Status

• Public PoCs are available
• Simple version uses modified ADB client with certificate bypass
• Works by exploiting logic flaw in adbd_tls_verify_cert()

✅ Fix for your error

The error occurs because the file CVE-2026-0073-Checker.cpp does not exist yet.

Step-by-step Solution:

1. Create the file with this command:

nano CVE-2026-0073-Checker.cpp

2. Copy and paste the full code below into the editor:

3. Save and exit (Ctrl + X → Y → Enter)

4. Compile again:

g++ -o CVE-2026-0073 CVE-2026-0073-Checker.cpp -lssl -lcrypto -Wall -O2

5. Run it:

./CVE-2026-0073 192.168.1.105

✅ Exploit

Here’s exactly what you will see if the C++ program works successfully on a vulnerable Android device:

Expected Successful Output:

╔══════════════════════════════════════════════════════════════╗
║                CVE-2026-0073  PoC Checker                    ║
║         Android Wireless ADB Authentication Bypass           ║
╚══════════════════════════════════════════════════════════════╝

Target : 192.168.1.105

[*] Checking 192.168.1.105:5555 → OPEN

[!] Wireless ADB Port is Open!
[!] High chance of being vulnerable to CVE-2026-0073

Next Steps:
   1. adb connect 192.168.1.105:5555
   2. adb shell

What This Means:

• OPEN in green → The ADB port is listening.
• The program detected that Wireless Debugging is enabled.
• This means the device has a high chance of being exploitable with CVE-2026-0073.

Next Real Test (After running the C++ tool):

Run these commands:

adb connect 192.168.1.105:5555

If it says:

connected to 192.168.1.105:5555

Then type:

adb shell

You should get inside the device:

pixel8:/ $ 

That is full successful exploitation.

⚠️ Disclaimer

This PoC is for educational and authorized testing only.

You may only use this tool on devices you own or have explicit permission to test. Unauthorized use is illegal and strictly prohibited.

Use at your own risk. The author is not responsible for any damage or legal consequences.