The Stagefright Detector app is designed to help you determine if your Android device is vulnerable to the Stagefright library vulnerabilities. This app was created by Zimperium zLabs, a pioneer in advanced mobile threat protection, and is free to download and use. The app will provide you with three key pieces of information: whether your device is vulnerable, which CVEs your device is vulnerable to, and whether you need to update your mobile operating system.

Stagefright is a serious vulnerability that can allow hackers to gain media or system privileges on your device by processing an incoming MMS message or by surfing the web on any of the 11 potential attack vectors. In many cases, the attack does not require any end-user action, and the attacker can even delete the MMS before you open it.

The app anonymously collects the results of the test and shares it with device vendors and carriers through the Zimperium Handset Alliance (ZHA). This app is a must-have for anyone who wants to ensure their device is secure and protected from potential attacks.