Abobe Acrobat security updates protect against malicious PDFs
Users should install the latest security updates to protect against malicious PDFs circulating in spammed email attacks. Usually starting Adobe Acrobat will trigger the automatic update checking process. Please move to the latest version to better ensure safety when processing PDF documents.
APSB10-02: Abobe PDF security updates
http://www.adobe.com/support/security/bulletins/apsb10-02.html
QUOTE: Critical vulnerabilities have been identified in Adobe Reader 9.2 and Acrobat 9.2 for Windows, Macintosh and UNIX, and Adobe Reader 8.1.7 and Acrobat 8.1.7 for Windows and Macintosh. These vulnerabilities could cause the application to crash and could potentially allow an attacker to take control of the affected system.
SOLUTION: Acrobat Standard and Pro users on Windows can find the appropriate update here:
http://www.adobe.com/support/downloads/product.jsp?product=1&platform=Windows