Bulletin Severity Rating:Critical – This security update resolves a privately reported vulnerability in the Unicode Scripts Processor. The vulnerability could allow remote code execution if a user viewed a specially crafted document or Web page with an application that supports embedded OpenType fonts. An attacker who successfully exploited this vulnerability could gain the same user rights as…

Read more at: Microsoft Security Bulletins

Bulletin Severity Rating:Critical – This security update resolves a privately reported vulnerability in the Unicode Scripts Processor. The vulnerability could allow remote code execution if a user viewed a specially crafted document or Web page with an application that supports embedded OpenType fonts. An attacker who successfully exploited this vulnerability could gain the same user rights as the local user. Users whose accounts are configured to have fewer user rights on the system could be less impacted than users who operate with administrative user rights.

Read more at: Microsoft Security Bulletins