Adobe Reader 11.0.02 is out.
Download or update from within the program (Help > Check for updates).
Security bulletin – Security updates available for Adobe Reader and Acrobat
Adobe has released security updates for Adobe Reader and Acrobat XI (11.0.01 and earlier) for Windows and Macintosh, X (10.1.5 and earlier) for Windows and Macintosh, 9.5.3 and earlier 9.x versions for Windows and Macintosh, and Adobe Reader 9.5.3 and earlier 9.x versions for Linux. These updates address vulnerabilities that could cause a crash and potentially allow an attacker to take control of the affected system.