From: Apple Product Security
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APPLE-SA-2016-05-16-4 OS X El Capitan 10.11.5 and Security Update
2016-003

OS X El Capitan 10.11.5 and Security Update 2016-003 is now available
and addresses the following:

AMD
Available for:  OS X El Capitan v10.11 and later
Impact:  An application may be able to execute arbitrary code with [...]