How safe your PDF Viewer using this interesting technic

http://www.net-security.org/secworld.php?id=9083

http://blog.didierstevens.com/2010/03/29/escape-from-pdf/

PDF-XChange looks Safe ;)

I open my pdf's sandboxed.

Foxit Reader have taken this seriously and say they will issue a new version later today

Foxit Corporation takes every security concern seriously and we focus our engineering resources on determining the cause of each issue and coming up with a complete and safe solution.

After receiving word of a recent security concern, the Foxit development team immediately looked into the issue, confirmed the risk and resolved the situation quickly. Foxit expects to release a new version of Foxit Reader with this fix on April 2, 2010.

To address the specific problems outlined, Foxit has added a warning dialog box that will pop up when a PDF file is opened with Foxit Reader, asking the user to agree to execute or not. This solution adds a layer of safety yet maintains Foxit Reader’s compliance with current PDF standards.

Foxit is committed to adhering to and advancing current PDF standards; as such, we have developed a safer, easier and more widely accepted PDF document reader.

Foxit upgrade is available now

SumatraPDF says nothing and doesn't open CMD.