According to Microsoft they have released nine security bulletins, four of which include a maximum rating of critical, addressing a total of 13 vulnerabilities. It was also known that several of these are serious but are important mitigating factors on them. The users of the most recent products (especially Windows 7 and Office 2010) are least affected
It was reported that only four critical bugs is vulnerability in a print spooler service and that could allow remote code execution. Microsoft said that this vulnerability is already being exploited in the wild, but there are some important mitigating factors. The second vulnerability affects the MPEG-4 codec.
Earlier the Outlook versions 2002, 2003, and 2007 (not 2010) are vulnerable to compromise by a malicious e-mail message when connected to an Exchange Server in Online mode.