Adobe has just released Adobe Reader and Acrobat in Version 9.4.1. This release fixes 20 bugs of which 17 are rated critical security vulnerabilities by the company. This means that attackers can abuse them to smuggle malware like Trojans on victims computers – just by opening infected PDF documents, for example.

The updates for Windows and Mac OS X can be downloaded on Adobes website, the update for Unix versions of Reader is announced for the 30th of November. Users and administrators should install the new versions as soon as possible.