If you own a OnePlus 2 you should have received the over-the-air update notification for October Security Patch, and it's crucial that you download it, as it brings along the fix for the critical severity vulnerability in media framework that could enable a remote attacker using a specially crafted file to execute arbitrary code within the context of a privileged process.
Additionally, this update also comes with WPA2 WiFi vulnerability "KRACK" Fix. The Key Reinstallation Attacks (A.K.A KRACKs) was first discovered by Mathy Vanhoef of imec-DistriNet, KU Leuven. It’s a WiFi vulnerability that breaks WPA2 by forcing nonce reuse.
If you haven't got the notification of this new software update yet, Just go to Settings - About Phone - Software updates, and It will automatically start downloading the latest update. The update will take around 10-15 minutes to get Installed on your device. Stay tuned to our Facebook and Twitter page to get the first News.