Severity Rating: Important
Revision Note: V1.0 (September 13, 2016): Bulletin published.
Summary: This security update resolves a vulnerability in Microsoft Windows. On Windows Vista, Windows Server 2008, Windows 7, and Windows Server 2008 R2 operating systems, the vulnerability could allow remote code execution if an authenticated attacker sends specially crafted packets to an affected Microsoft Server Message Block 1.0 (SMBv1) Server. The vulnerability does not impact other SMB Server versions. Although later operating systems are affected, the potential impact is denial of service.

Severity Rating: Critical
Revision Note: V1.0 (September 13, 2016): Bulletin published.
Summary: This security update resolves vulnerabilities in Internet Explorer. The most severe of the vulnerabilities could allow remote code execution if a user views a specially crafted webpage using Internet Explorer. An attacker who successfully exploited the vulnerabilities could gain the same user rights as the current user. If the current user is logged on with administrative user rights, an attacker could take control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.

Severity Rating: Important
Revision Note: V1.0 (September 13, 2016): Bulletin published.
Summary: This security update resolves a vulnerability in Microsoft Silverlight. The vulnerability could allow remote code execution if a user visits a compromised website that contains a specially crafted Silverlight application. An attacker would have no way to force a user to visit a compromised website. Instead, an attacker would have to convince the user to visit the website, typically by enticing the user to click a link in either an email or instant message that takes the user to the attacker’s website.

Severity Rating: Important
Revision Note: V1.0 (September 13, 2016): Bulletin published.
Summary: This security update resolves vulnerabilities in Microsoft Windows. The vulnerabilities could allow information disclosure if a user views specially crafted PDF content online or opens a specially crafted PDF document.

Severity Rating: Important
Revision Note: V1.0 (September 13, 2016): Bulletin published.
Summary: This security update resolves multiple vulnerabilities in Microsoft Windows. The most severe of the vulnerabilities could allow remote code execution if an attacker creates a specially crafted request and executes arbitrary code with elevated permissions on a target system.

Revision Note: V1.0 (September 13, 2016): Advisory published.
Summary: Microsoft is releasing this security advisory to provide information about a vulnerability in the public versions of ASP.NET Core MVC 1.0.0. This advisory also provides guidance on what developers can do to help ensure that their applications are updated correctly.