Adobe Reader 8.1.2 Security Update 1
I just came across this! I haven't seen it reported anywhere though!
Download Adobe Reader 8.1.2 MSI
Download the Security Update 1 MSI here
A critical vulnerability has been identified in Adobe Reader and Acrobat 8.1.2. This vulnerability would cause the application to crash and could potentially allow an attacker to take control of the affected system.
Adobe recommends users of Acrobat 8 and Adobe Reader install the 8.1.2 Security Update 1 patch.