There is a zero day vulnerability for Acrobat and Reader. As I understand it a patch is to be released on Tuesday, October 13.
Critical: Extremely critical
Impact: System access
Where: From remote
Solution Status: Unpatched
A vulnerability has been reported in Adobe Reader and Acrobat, which can be exploited by malicious people to compromise a user’s system.
The vulnerability is caused due to an unspecified error and can be exploited to execute arbitrary code.
NOTE: The vulnerability is currently being actively exploited.
The vulnerability is reported in Adobe Reader and Adobe Acrobat versions 9.1.3 and prior.