Project Zero has been working with Adobe on Flash mitigations. The latest version of Flash has been updated to v18.0.209 (or newer) This is a good time to check your current Flash version because you really want the latest one. Heap partitioning is a technique that isolates different types of objects on the heap from one another. This defense is much more powerful in a 64-bit build of Flash, because of address space limitations of 32-bit processes.”]
Source: https://googleprojectzero.blogspot.com/2015/07/significant-flash-exploit-mitigations_16.html