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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: V1.0 (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: 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: 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...

Severity Rating: Important Revision Note: V2.0 (April 11, 2017): To comprehensively address CVE-2017-0027 for Office for Mac 2011 only, Microsoft is releasing security update 3212218. Microsoft recommends that customers running Office for Mac 2011 install update 3212218 to be fully protected from this vulnerability. See Microsoft Knowledge Base Article 3212218 for more information. Summary: This security update resolves vulnerabilities in Microsoft Office. The most severe of the vulnerabilities could allow remote code execution if a user opens a specially crafted Microsoft Office file. An attacker who successfully exploited the vulnerabilities could run arbitrary code in the context of the current user. Customers 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: 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...

Revision Note: V1.0 (May 9, 2017): Advisory published. Summary: Beginning May 9, 2017, Microsoft released updates to Microsoft Edge and Internet Explorer 11 to block sites that are protected with a SHA-1 certificate from loading and displays an invalid certificate warning. This change will only impact SHA-1 certificates that chain to a Microsoft Trusted Root CA where the end-entity certificate or the issuing intermediate uses SHA-1. Manually-installed enterprise or self-signed SHA-1 certificates will not be impacted, although we recommend that all customers quickly migrate to SHA-2. For more information, please see Windows Enforcement of SHA1 Certificates. More...

Severity Rating: Critical Revision Note: V3.0 (May 9, 2017): Microsoft has re-released security update 4017018 for affected editions of Windows Server 2008. The re-release has been re-classified as a security update. Microsoft recommends that customers should install update 4017018 to be fully protected from CVE-2017-0038. Customers who have already installed the update do not need to take any further action. In addition, this security update correction also applies to Windows Server 2008 for Itanium-based Systems. 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...

Revision Note: V1.1 (May 10, 2017): Advisory revised to include a table of issue CVEs and their descriptions. This is an informational change only. Summary: Microsoft is releasing this security advisory to provide information about vulnerabilities in the public .NET Core and ASP.NET Core. This advisory also provides guidance on what developers can do to update their applications correctly. More...

Severity Rating: Critical Revision Note: V1.2 (May 12, 2017): Added entries into the affected software table. This is an informational change only. Summary: Microsoft is releasing this security advisory to inform customers that an update to the Microsoft Malware Protection Engine addresses a security vulnerability that was reported to Microsoft. More...

Severity Rating: Critical Revision Note: V1.3 (May 12, 2017): Updated FAQ to clarify the update that needs to be installed: ?the current cumulative update?. This is an informational change only. Summary: Microsoft is releasing this security advisory to provide information related to an uncommon deployment scenario in which the Windows Update Client may not properly scan for, or download, updates. More...

Revision Note: V1.0 (June 13, 2017): Advisory published Summary: Microsoft is announcing the availability of additional guidance for critical security updates, that are at heightened risk of exploitation due to past and threatened nation-state attacks and disclosures. Some of the releases are new, and some are for older platforms that we are making publicly available today. More...

Revision Note: V1.0 (June 27, 2017): Advisory published. Summary: Microsoft is releasing this security advisory to inform customers that a new version of Azure Active Directory (AD) Connect is available that addresses an Important security vulnerability. More...

Revision Note: V2.0 (July 11, 2017): Revised Windows Affected Software and Vulnerability Severity Ratings table to include Windows 10 Version 1703 for 32-bit Systems and Windows 10 Version 1703 for x64-based Systems because they are affected by CVE-2016-3305. Microsoft recommends that customers running Windows 10 Version 1703 should install update 4025342 to be protected from this vulnerability. Summary: This bulletin summary lists security bulletins released for September 2016. More...

Severity Rating: Important Revision Note: V2.0 (July 11, 2017): Revised Windows Affected Software and Vulnerability Severity Ratings table to include Windows 10 Version 1703 for 32-bit Systems and Windows 10 Version 1703 for x64-based Systems because they are affected by CVE-2016-3305. Microsoft recommends that customers running Windows 10 Version 1703 should install update 4025342 to be protected from this vulnerability. Summary: This security update resolves vulnerabilities in Microsoft Windows. The vulnerabilities could allow elevation of privilege if an attacker runs a specially crafted application on a target system. More...