Bulletin Severity Rating:Critical - This security update resolves a privately reported vulnerability in the ActiveX control for the Snapshot Viewer for Microsoft Access. An attacker could exploit the vulnerability by constructing a specially crafted Web page. When a user views the Web page, the vulnerability could allow remote code execution. An attacker who successfully exploited this vulnerability could gain the same user rights as the logged-on user.
Original Source: http://www.microsoft.com/technet/security/bulletin/ms08-041.mspx?pubDate=2008-08-12