Samsung has recently been sending out firmware updates to fix a major security vulnerability known as Blueborne. The company today rolled out the Galaxy A5 (2017) Blueborne fix. Earlier today, Samsung also released the fix for this vulnerability for the Galaxy S8 and Galaxy S8+.
The Blueborne vulnerability is a security exploit that was recently discovered. It affects Android, Windows and even some iOS devices. The vulnerability enables hackers to take over a device completely. The hacker doesn't need to pair with the device. It doesn't even need to be in discoverable mode.
Samsung is rolling out the Galaxy A5 (2017) Blueborne fix with firmware version A520FXXU2BQIE. It's a 76MB download that patches this vulnerability. The security patch hasn't been upgraded from August. That was to be expected since Samsung has been so busy with rolling out the fixes for Blueborne that it hasn't really focused on the September security patch.
If Samsung doesn't get around to doing that then it's possible that it will just combine the September security fixes with the patch for October 2017.
This firmware update with the Galaxy A5 (2017) Blueborne fix is now being rolled out by Samsung in several countries across the globe. The Galaxy A3 (2017) received the fix for this vulnerability with the Nougat update that was rolled out recently for the handset.