Adobe Reader and Acrobat are applications for handling PDF files. The application is exposed to a remote security bypass issue that affects security controls for file extensions. Successfully exploiting this issue may allow an attacker to bypass intended security restrictions. Adobe Acrobat versions 9.x earlier than 9.2 are affected by this issue.
Ref:
http://www.adobe.com/support/security/bulletins/apsb09-15.html
09.44.50 - CVE: CVE-2009-3461
Platform: Cross Platform