We had countless vulnerabilities discovered in Android.
Apple too had its share with a serious zero-day vulnerability in Apples OS X 10.10 Yosemite operating system.
The DYLD exploit allowed attackers to install malware and adware without the need for administrative privileges.
Apple moved quickly and released a patch for the DYLD_PRINT_TO_FILE vulnerability with a new OS X point release.
So as of the time of writing this article Macbooks across the world are vulnerable to this Zero-day.
source: www.techworm.net