The remote host is missing a critical Mac OS X patch update.
The remote host is running a version of Mac OS X 10.x that is prior to version 10.8.6/10.9.6. Mac OS X prior to version 10.8.6/10.9.6 contains a flaw within the Apple Type Services (ATS) component which may allow a local user to elevate privileges. (CVE-2015-1131)
Upgrade to version 10.8.6/10.9.6 or higher.