Severity Rating: Important
Revision Note: V1.0 (June 14, 2016):
Summary: This security update resolves a vulnerability in Microsoft Windows. The vulnerability could allow denial of service if an attacker logs on to a target system and runs a specially crafted application.

Severity Rating: Important
Revision Note: V1.0 (June 14, 2016): Bulletin published.
Summary: This security update resolves a vulnerability in Microsoft Windows. The vulnerability could allow remote code execution if an attacker with access to a domain controller (DC) on a target network runs a specially crafted application to establish a secure channel to the DC as a replica domain controller.

Severity Rating: Important
Revision Note: V1.0 (June 14, 2016): Bulletin published.
Summary: This security update resolves a vulnerability in Microsoft Windows. The vulnerability could allow elevation of privilege if an attacker logs on to the system and runs a specially crafted application.

Severity Rating: Important
Revision Note: V1.0 (June 14, 2016): Bulletin published.
Summary: This security update resolves vulnerabilities in Microsoft Windows. The vulnerabilities could allow elevation of privilege if the Web Proxy Auto Discovery (WPAD) protocol falls back to a vulnerable proxy discovery process on a target system.

Severity Rating: Critical
Revision Note: V1.0 (June 14, 2016): Bulletin published.
Summary: This security update resolves vulnerabilities in the JScript and VBScript scripting engines in Microsoft Windows. The vulnerabilities could allow remote code execution if a user visits a specially crafted website. 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 these vulnerabilities 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 (June 14, 2016): Bulletin published.
Summary: This security update resolves a vulnerability in Microsoft Windows. The vulnerability could allow elevation of privilege if an attacker launches a man-in-the-middle (MiTM) attack against the traffic passing between a domain controller and the target machine .

Severity Rating: Critical
Revision Note: V1.0 (June 14, 2016): Bulletin published.
Summary: This security update resolves vulnerabilities in Microsoft Office. 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.

Revision Note: V2.0 (May 18, 2016): Advisory updated to provide links to the current information regarding the use of the SHA1 hashing algorithm for the purposes of SSL and code signing. For more information, see Windows Enforcement of Authenticode Code Signing and Timestamping.
Summary: Microsoft is announcing a policy change to the Microsoft Root Certificate Program. The new policy will no longer allow root certificate authorities to issue X.509 certificates using the SHA-1 hashing algorithm for the purposes of SSL and code signing after January 1, 2016. Using the SHA-1 hashing algorithm in digital certificates could allow an attacker to spoof content, perform phishing attacks, or perform man-in-the-middle attacks.

Severity Rating: Critical
Revision Note: V1.0 (May 10, 2016): Bulletin published.
Summary: This security update resolves vulnerabilities in Microsoft Windows. The most severe of the vulnerabilities could allow remote code execution if a user opens a specially crafted document or visits a specially crafted website. 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.

Severity Rating: Critical
Revision Note: V1.0 (May 10, 2016): Bulletin published.
Summary: This security update resolves vulnerabilities in Microsoft Edge. The most severe of the vulnerabilities could allow remote code execution if a user views a specially crafted webpage using Microsoft Edge. An attacker who successfully exploited the vulnerabilities could gain the same user rights as the current user. Customers whose accounts are configured to have fewer user rights on the system could be less impacted than users with administrative user rights.