Today a new software update arrived (using Vodafone as provider) for the Samsung Galaxy S6 with the name G920FXXU2COH4 / G920FTEF2COH1 / G920FXXU2COH2. While a quick internet search didn’t reveal the purpose of the update, it seems that the Stagefright vulnerability finally has been fixed. I’ve tested the vulnerability to Stagefright attacks with Zimperium’s Stagefright Detector, as you can see in the following picture.
Apparently, Samsung finally fixed this security gap which is known at least since the 27th of July 2015 (6 weeks and 2 days).