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Revision Note: V1.0 (January 10, 2017): Advisory published. Summary: Microsoft is releasing this security advisory to provide information about a vulnerability in the public version of Identity Model Extensions 5.1.0. This advisory also provides guidance on what developers can do to help ensure that their apps are updated correctly. More...

Revision Note: V1.1 (January 10, 2017): Bulletin Summary revised to change the severity of CVE-2017-0003 to Important. This is an informational change only Summary: This bulletin summary lists security bulletins released for January2017 More...

Revision Note: V1.0 (January 27, 2017): Advisory published. Summary: Microsoft is releasing this security advisory to provide information about a vulnerability in the public versions of ASP.NET Core MVC 1.1.0. This advisory also provides guidance on what developers can do to update their applications correctly. More...

Severity Rating: Critical Revision Note: V1.0 (February 21, 2017): Bulletin published. Summary: This security update resolves vulnerabilities in Adobe Flash Player when installed on all supported editions of Windows 8.1, Windows Server 2012, Windows Server 2012 R2, Windows RT 8.1, and Windows 10. More...

Revision Note: V1.0 (February 21, 2017): Summary: This bulletin summary lists security bulletins released for February 2017 More...

Severity Rating: Important Revision Note: V2.1 (February 23, 2017): Revised bulletin to announce a detection logic change to Monthly Rollup Release KB3205403 and Monthly Rollup Release KB3205404. This is an informational change only. Customers who have already successfully updated their systems do not need to take any action. Summary: This security update resolves a vulnerability in Microsoft .NET 4.6.2 Framework?s Data Provider for SQL Server. A security vulnerability exists in Microsoft .NET Framework 4.6.2 that could allow an attacker to access information that is defended by the Always Encrypted feature. More...

Severity Rating: Critical Revision Note: V1.0 (March 14, 2017): Bulletin published. Summary: This security update resolves vulnerabilities in Microsoft Windows. The most severe of the vulnerabilities could allow remote code execution if an attacker sends specially crafted messages to a Windows SMBv1 server. More...

Severity Rating: Critical Revision Note: V1.0 (March 14, 2017): Bulletin published. Summary: This security update resolves vulnerabilities in Microsoft Windows. The most severe of the vulnerabilities could allow remote code execution if an authenticated attacker on a guest operating system runs a specially crafted application that causes the Hyper-V host operating system to execute arbitrary code. Customers who have not enabled the Hyper-V role are not affected. More...

Severity Rating: Important Revision Note: V1.0 (March 14, 2017): Bulletin published. Summary: This security update resolves vulnerabilities in Microsoft Exchange Server. More...

Severity Rating: Critical Revision Note: V1.0 (March 14, 2017): 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. More...

Severity Rating: Critical Revision Note: V1.0 (March 14, 2017): Bulletin published. Summary: This security update resolves vulnerabilities in Microsoft Windows. The most severe of the vulnerabilities could allow remote code execution if an attacker running inside a virtual machine runs a specially crafted application. More...

Severity Rating: Critical Revision Note: V1.0 (March 14, 2017): 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 these vulnerabilities could gain the same user rights as the current user. If the current user is logged on with administrative user rights, an attacker who successfully exploited this vulnerability 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. More...

Severity Rating: Important Revision Note: V1.0 (March 14, 2017): Click here to enter text. Summary: This security update resolves a vulnerability in Microsoft Windows. The vulnerability could allow remote code execution if an attacker with access to the local system executes a malicious application. An attacker who successfully exploited this vulnerability 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 those who operate with administrative user rights. More...

Severity Rating: Important Revision Note: V1.0 (March 14, 2017): Bulletin published. Summary: This security update resolves a vulnerability in Active Directory Federation Services (ADFS). The vulnerability could allow information disclosure if an attacker sends a specially crafted request to an ADFS server, allowing the attacker to read sensitive information about the target system. More...

Severity Rating: Critical Revision Note: V1.0 (March 14, 2017): Bulletin published. Summary: This security update resolves vulnerabilities in Adobe Flash Player when installed on all supported editions of Windows 8.1, Windows Server 2012, Windows Server 2012 R2, Windows RT 8.1, and Windows 10. More...

Severity Rating: Important Revision Note: V1.0 (March 14, 2017): Bulletin published. Summary: This security update resolves an information disclosure vulnerability in Windows DVD Maker. The vulnerability could allow an attacker to obtain information to further compromise a target system. More...

Revision Note: V2.0 (March 14, 2017): Advisory rereleased to announce that the changes described in this advisory have been reverted as of November 2016. This is an informational change only. Summary: Microsoft is announcing a policy change to the Microsoft Root Certificate Program. More...

Severity Rating: Important Revision Note: V1.0 (March 14, 2017): Bulletin published. Summary: This security update resolves a vulnerability in Microsoft Windows. The vulnerability could allow information disclosure if a user visits a malicious website. However, in all cases an attacker would have no way to force a user to click a specially crafted link. An attacker would have to convince a user to click the link, typically by way of an enticement in an email or Instant Messenger message. More...

Severity Rating: Important Revision Note: V1.0 (March 14, 2017): Bulletin published Summary: This security update resolves vulnerabilities in Microsoft Windows. The vulnerabilities could allow elevation of privilege if an attacker logs on to an affected system and runs a specially crafted application that could exploit the vulnerabilities and take control of an affected system. More...

Severity Rating: Critical Revision Note: V1.0 (March 14, 2017): Bulletin published. Summary: This security update resolves vulnerabilities in Microsoft Windows, Microsoft Office, Skype for Business, Silverlight and Microsoft Lync. The most serious of these vulnerabilities could allow remote code execution if a user either visits a specially crafted website or opens a specially crafted document. 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. More...

Severity Rating: Important Revision Note: V1.0 (March 14, 2017): Bulletin published. Summary: This security update resolves vulnerabilities in Microsoft Windows. The vulnerabilities could allow elevation of privilege if an attacker runs a specially crafted application. More...

Severity Rating: Critical Revision Note: V1.0 (March 14, 2017): Bulletin published. Summary: This security update resolves a vulnerability in Windows Uniscribe. The vulnerability could allow remote code execution if a user visits a specially crafted website or opens a specially crafted document. 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. More...

Severity Rating: Critical Revision Note: V1.1 (March 17, 2017): 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. More...

Severity Rating: Important Revision Note: V2.0 (April 11, 2017): Bulletin revised to announce that the security updates that apply to CVE-2017-0042 for Windows Server 2012 are now available. Customers running Windows Server 2012 should install update 4015548 (Security Only) or 4015551 (Monthly Rollup) to be fully protected from this vulnerability. Customers running other versions of Microsoft Windows do not need to take any further action. Summary: This security update resolves a vulnerability in Microsoft Windows. The vulnerability could allow an Information Disclosure if Windows DirectShow opens specially crafted media content that is hosted on a malicious website. An attacker who successfully exploited the vulnerability could obtain information to further compromise a target system. More...

Severity Rating: Critical Revision Note: V2.0 (April 11, 2017): Bulletin revised to announce the release of a new Internet Explorer cumulative update (4014661) for CVE-2016-0162. The update adds to the original release to comprehensively address CVE-2016-0162. Microsoft recommends that customers running the affected software install the security update to be fully protected from the vulnerability described in this bulletin. See Microsoft Knowledge Base Article 4014661 for more information. 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. More...