Researchers from security firm FireEye claim that attackers are actively using a remote code execution exploit that works against the latest versions of Adobe Reader 9, 10 and 11.

“Today, we identified that a PDF zero-day [vulnerability] is being exploited in the wild, and we observed successful exploitation on the latest Adobe PDF Reader 9.5.3, 10.1.5, and 11.0.1,” the FireEye researchers said late Tuesday in a blog post.

Read more here: http://www.pcworld.com/article/2027946/researchers-zero-day-pdf-exploit-affects-adobe-reader-11-earlier-versions.html
 
Make sure your very careful to only open PDFs from people you trust.

GOA.Luke*BK*

Here is a possible fix:

Those who want to protect themselves from PDF exploits have one of two options. One is to use an alternative app such as the Foxit Reader. With the exception of the reader that Google includes with its Chrome browser, these alternative programs are probably line-for-line as buggy as Adobe's app. But since they have orders of magnitude fewer users, they're much less likely to be targeted by the kinds of attacks uncovered by FireEye.

The other option for Windows and Mac users is to install Reader XI and enable protected view using the steps outlined in the second paragraph of this article.

Read more about it here: http://arstechnica.com/security/2013/02/thanks-adobe-protection-for-critical-zero-day-exploit-not-on-by-default/

Thank You!!