Technical Information

Brief overview of the risk:
The more severe of these vulnerabilities could allow remote code execution if a user opens a specially crafted document or visits a malicious webpage that embeds TrueType or OpenType font files. An attacker would have to convince users to visit the website, typically by getting them to click a link in an email message that takes them to the attacker’s website.
Detailed Information on the risk:

A remote code execution vulnerability exists in the way that affected components handle a specially crafted TrueType font files. The vulnerability could allow remote code execution if a user opens a specially crafted TrueType font file. An attacker who successfully exploited this vulnerability could take complete control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full administrative rights.

Further information on this exploit is available at : MS12-078