To check if your current Android System is vulnerable to the Stagefright Bug, just use this app: https://play.google.com/store/apps/details?id=com.zimperium.stagefrightdetector
IT Systemelektroniker & Master of Science, IT Security, Networks, Embedded Systems, Docker Campus Ambassador and Raspberry Pi Geek
To check if your current Android System is vulnerable to the Stagefright Bug, just use this app: https://play.google.com/store/apps/details?id=com.zimperium.stagefrightdetector