<ul><li>A security researcher discovered a Denial of Service (DOS) bug in Facebook Messenger for iOS version 477.0.0.</li><li>The researcher used emojis to identify the bug, reverse engineered the Messenger APK using JADX and conducted dynamic investigations with Frida.</li><li>It was found that the data being transmitted to the recipient is a string containing an emoji in hexadecimal.</li><li>The researcher also demonstrated that sending an invalid string caused the Messenger app to crash.</li></ul>

Here’s How A User Found A Denial-Of-Service Bug On Facebook Messenger Using 😡 Emojis

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