This vulnerability affects 12.0.0.43 and earlier versions of flash for Windows as well as Mac.
This vulnerability was discovered by two researchers at kaspersky lab, Alexander Polyakov and Anton Ivanov.
Kaspersky lab provided technical analysis of the exploit and payload.
There are total 11 Versions of Flash player which have this loophole.
Adobe further states that Users of Adobe Flash player 12.0.0.43 should update their Adobe Flash player to 12.0.0.44.
source: www.techworm.net