This bulletin summary lists security bulletins released for November2012.

With the release of the security bulletins for November 2012, this bulletin summary replaces the bulletin advance notification originally issued November 8, 2012. For more information about the bulletin advance notification service, see Microsoft Security Bulletin Advance Notification.

For information about how to receive automatic notifications whenever Microsoft security bulletins are issued, visit Microsoft Technical Security Notifications.

Microsoft is hosting a webcast to address customer questions on these bulletins on November 14, 2012, at 11:00 AM Pacific Time (US & Canada). Register now for the November Security Bulletin Webcast. After this date, this webcast is available on-demand.

Microsoft also provides information to help customers prioritize monthly security updates with any non-security updates that are being released on the same day as the monthly security updates. Please see the section, Other Information.

Bulletin Information

Executive Summaries

The following table summarizes the security bulletins for this month in order of severity.

For details on affected software, see the next section, Affected Software and Download Locations.
Bulletin ID Bulletin Title and Executive Summary Maximum Severity Rating and Vulnerability Impact Restart Requirement Affected Software

MS12-071 Cumulative Security Update for Internet Explorer (2761451)

This security update resolves three privately reported vulnerabilities in Internet Explorer. The vulnerabilities could allow remote code execution if a user views a specially crafted webpage using Internet Explorer. An attacker who successfully exploited these vulnerabilities could gain the same user rights as the current 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.

Critical
Remote Code Execution Requires restart Microsoft Windows, Internet Explorer

MS12-072 Vulnerabilities in Windows Shell Could Allow Remote Code Execution (2727528)

This security update resolves two privately reported vulnerabilities in Microsoft Windows. The vulnerabilities could allow remote code execution if a user browses to a specially crafted briefcase in Windows Explorer. An attacker who successfully exploited this vulnerability could run arbitrary code as the current user. If the current user is logged on with administrative user rights, an attacker could take complete control of the affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. 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.

Critical
Remote Code Execution Requires restart Microsoft Windows

MS12-074 Vulnerabilities in .NET Framework Could Allow Remote Code Execution (2745030)

This security update resolves five privately reported vulnerabilities in the .NET Framework. The most severe of these vulnerabilities could allow remote code execution if an attacker convinces the user of a target system to use a malicious proxy auto configuration file and then injects code into the currently running application.

Critical
Remote Code Execution May require restart Microsoft Windows, Microsoft .NET Framework

MS12-075 Vulnerabilities in Windows Kernel-Mode Drivers Could Allow Remote Code Execution (2761226)

This security update resolves three privately reported vulnerabilities in Microsoft Windows. The most 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 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.

Critical
Remote Code Execution Requires restart Microsoft Windows

MS12-076 Vulnerabilities in Microsoft Excel Could Allow Remote Code Execution (2720184)

This security update resolves four privately reported vulnerabilities in Microsoft Office. The vulnerabilities could allow remote code execution if a user opens a specially crafted Excel file with an affected version of Microsoft Excel. An attacker who successfully exploited the vulnerabilities could gain the same user rights as the current 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.

Important
Remote Code Execution May require restart Microsoft Office

MS12-073 Vulnerabilities in Microsoft Internet Information Services (IIS) Could Allow Information Disclosure (2733829)

This security update resolves one publicly disclosed vulnerability and one privately reported vulnerability in Microsoft Internet Information Services (IIS). The more severe vulnerability could allow information disclosure if an attacker sends specially crafted FTP commands to the server.

Moderate
Information Disclosure May require restart Microsoft Windows