Adobe has brought forward a scheduled security update by two weeks in order to fix 17 vulnerabilities in its Acrobat and Reader packages, all of which have been branded 'critical'.
The security holes have been found in Mac, Unix and Windows versions of Adobe Reader and Adobe Acrobat for Mac and Windows from version 9.3.2 or earlier.
Anyone who has updated to version 9.3.3 should be relatively safe for now.
The update, which was originally scheduled for July 13th can be installed using Adobe's Automatic Update feature or via the links found in the security bulletin.
Adobe is warning that one of the memory corruption vulnerabilities fixed by this update, which could lead to code execution in the wrong hands, is currently being "actively exploited in the wild".