Adobe has confirmed a critical vulnerability in Adobe Reader and Acrobat 9.2 and earlier versions that could cause a crash and potentially allow an attacker to take control of the affected system. There are reports that this vulnerability is being actively exploited in the wild. Adobe recommends customers follow the mitigation guidance below until a patch is available.

Adobe plans to make available an update to Adobe Reader and Acrobat by January 12, 2010 to resolve the issue.

Advisory: http://www.adobe.com/support/security/advisories/apsa09-07.html