Untrusted search path vulnerability in Adobe Reader and Acrobat before 11.0.15, Acrobat and Acrobat Reader DC Classic before 15.006.30121, and Acrobat and Acrobat Reader DC Continuous before 15.010.20060 on Windows and OS X allows local users to gain privileges via a Trojan horse DLL in an unspecified directory.
https://helpx.adobe.com/security/products/acrobat/apsb16-09.html
http://www.zerodayinitiative.com/advisories/ZDI-16-190