http://www.adobe.com/support/OScompatibility.html?promoid=GXVXG is the page and it is under OS compatibility as a stand alone product which is not compatible with Win 8.
A blank box seems to mean Not Applicable rather than incompatible.
Camera Raw used to be available as a standalone product. It is now a plugin for Photoshop CS6 and is part of the Lightroom 4 Develop module.
So the table is correct but slightly misleading since the Windows 8 box is blank but should say "No longer available as a standalone program".
Camera Raw runs fine in CS6 and LR4.4 on Windows 8.