Four new security updates are available for Windows 10 Builds 10074 and Build 10122. KB3046002, KB3049576 & KB3067515 are available for Build 10122, while KB3049563 is available for Build 10074. Here are the details of the updates, wherever available.
KB3049563:
This security update resolves several reported vulnerabilities in Internet Explorer. The most severe of these vulnerabilities could allow remote code execution if a user views a specially crafted webpage in Internet Explorer. To learn more about the vulnerabilities, see Microsoft Security Bulletin MS15-043.
Additionally, this security update includes several non-security-related fixes for Internet Explorer. Check out the deployment information.
KB3046002:
This security update resolves vulnerabilities in Microsoft Windows. The vulnerabilities could allow remote code execution if a user opens a specially crafted Journal file. Users whose accounts are configured to have fewer user rights on the system could be less affected than users who have administrative user rights.
KB3049576:
This security update resolves vulnerabilities in Windows. These vulnerabilities could allow elevation of privilege if an attacker logs on to the system and runs a specially crafted application. To exploit these vulnerabilities, an attacker would first have to log on to the system. The security update addresses the vulnerabilities by correcting how Windows validates impersonation events.
KB3067515:
Changelog not yet available but this update is meant for x64-based Systems.