Apple · Watchos · CVE-2016-1740
**Name of the Vulnerable Software and Affected Versions**
Apple iOS versions prior to 9.3
Apple OS X versions prior to 10.11.4
Apple tvOS versions prior to 9.2
Apple watchOS versions prior to 2.2
**Description**
The issue allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted PDF document. This is due to a buffer overflow in the FontParser component, which can be exploited by a remote attacker to achieve the aforementioned outcomes.
**Recommendations**
For Apple iOS versions prior to 9.3, update to version 9.3 or later.
For Apple OS X versions prior to 10.11.4, update to version 10.11.4 or later.
For Apple tvOS versions prior to 9.2, update to version 9.2 or later.
For Apple watchOS versions prior to 2.2, update to version 2.2 or later.