Corrine Administrator, Microsoft MVP, Security Analyst Staff member Joined Feb 22, 2012 Posts 10,159 Location Upstate, NY Sep 10, 2013 #1 Adobe identifies this update as a regular quarterly update that provides security mitigations, feature enhancements, and bug fixes. Note, however that the updates address vulnerabilities that could cause a crash and potentially allow an attacker to take control of the affected system. Release date: September 10, 2013 Vulnerability identifier: APSB13-22 CVE numbers: CVE-2013-3351, CVE-2013-3352, CVE-2013-3353, CVE-2013-3354, CVE-2013-3355, CVE-2013-3356, CVE-2013-3357, CVE-2013-3358 Platform: Windows and Macintosh Update checks can be manually activated by choosing Help > Check for Updates. Adobe Reader XI (11.0.04) for Windows is available here: Adobe - Adobe Reader : For Windows. Adobe Reader XI (11.0.04) for Macintosh is available here: Adobe - Adobe Reader : For Macintosh. Adobe Reader for Linux is not updated. Note: UNcheck any pre-checked additional options presented with the update. They are not part of the software update and are completely optional.