Apple's release of iOS 11 patched an out-of-bounds write vulnerability in Wi-Fi chips that, if exploited, could have allowed attackers within range to execute arbitrary code on the firmware.
Malware called ZNIU that is based on CVE-2016-5195, aka Dirty COW, has been found in more than 1,200 malicious Android apps affecting 5,000 users in 40 countries more than a year after the vulnerability first became known.