April 2, 2010 – Microsoft has released a critical cumulative security update for Internet Explorer. This security update resolves nine privately reported vulnerabilities and one publicly disclosed vulnerability in Internet Explorer. The more severe vulnerabilities could allow remote code execution if a user views a specially crafted Web page using Internet Explorer. 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.
This security update is rated Critical for all supported releases of Internet Explorer: Internet Explorer 5.01, Internet Explorer 6 Service Pack 1, Internet Explorer 6 on Windows clients, Internet Explorer 7, and Internet Explorer 8 on Windows clients. For Internet Explorer 6 on Windows servers, this update is rated Important. And for Internet Explorer 8 on Windows servers, this update is rated Moderate.
The security update addresses these vulnerabilities by modifying the way that Internet Explorer verifies the origin of scripts and handles objects in memory, content using encoding strings, and long URL.
Recommendation: The majority of customers have automatic updating enabled and will not need to take any action because this security update will be downloaded and installed automatically. Customers who have not enabled automatic updating need to check for updates and install this update manually.
For more detailed information and a link to the security update visit http://www.microsoft.com/technet/security/bulletin/MS10-018.mspx
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