Adobe Acrobat Reader Plugin before 8.0.0, and possibly the plugin distributed with Adobe Reader 7.x before 7.1.4, 8.x before 8.1.7, and 9.x before 9.2, when used with Internet Explorer, Google Chrome, or Opera, allows remote attackers to cause a denial of service (memory consumption) via a long sequence of # (hash) characters appended to a PDF URL, related to a "cross-site scripting issue."
Adobe Reader and Acrobat 7.0.8 and earlier allows user-assisted remote attackers to execute code via a crafted PDF file that triggers memory corruption and overwrites a subroutine pointer during rendering.