For more information, see CVE-2021-27092 and Policy CSP - Authentication.Īddresses an issue that causes Windows Back up using File History to stop working for a few users.
Secure vGPU alternatives are available using Discrete Device Assignment (DDA) in Windows Server LTSC releases (Windows Server 2016 and Windows Server 2019) and Windows Server SAC releases (Windows Server, version 1803 and later versions).Īddresses a potential elevation of privilege vulnerability in the way Azure Active Directory web sign-in allows arbitrary browsing from the third-party endpoints used for federated authentication. For more information about the vulnerability and its removal, see CVE-2020-1036 and KB4570006. Because of these security vulnerabilities, this and all future Windows updates will no longer contain the RemoteFX vGPU feature. Ticket acquisition also fails with the error, “KRB_GENERIC_ERROR”, if callers submit a PAC-less Ticket Granting Ticket (TGT) as an evidence ticket without providing the USER_NO_AUTH_DATA_REQUIRED flag.Īddresses an issue with security vulnerabilities identified by a security researcher. These updates were released between Novemand December 8, 2020. This occurs on devices that installed Windows Updates that contain CVE-2020-17049 protections and configured PerfromTicketSignature to 1 or higher. Key changes include:Īddresses an issue in which a principal in a trusted MIT realm fails to obtain a Kerberos service ticket from Active Directory domain controllers (DC). This security update includes quality improvements. Note: This release also contains updates for Microsoft HoloLens (OS Build 19041.1144) released April 13, 2021. Microsoft will release an update directly to the Windows Update Client to improve Windows Update reliability on Microsoft HoloLens that have not updated to this most recent OS Build.