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Critical [CVE-2021-26867] Windows Hyper-V Remote Code Execution Vulnerability
Windows Hyper-V Remote Code Execution Vulnerability Affected products named by the advisory: Windows Server version 2004; Windows Server version 20H2; Windows Server, version 1909 (Server Core installation).
High [CVE-2021-27077] Windows Win32k Elevation of Privilege Vulnerability
Windows Win32k Elevation of Privilege Vulnerability Affected products named by the advisory: Windows Server 2008 R2 Service Pack 1; Windows Server 2008 R2 Service Pack 1 (Server Core installation); Windows Server 2008 Service Pack 2; Windows Server 2008 Service Pack 2 (Server Core installation); and 11 more. Affected products named by the advisory: Windows Server 2012 (Server Core installation); Windows Server 2012 R2 (Server Core installation); Windows Server 2016 (Server Core installation); Windows Server 2019 (Server Core installation); and 3 more.
High [CVE-2021-27070] Windows 10 Update Assistant Elevation of Privilege Vulnerability
Windows 10 Update Assistant Elevation of Privilege Vulnerability Affected products named by the advisory: Windows Server version 2004; Windows Server version 20H2.
High [CVE-2021-27063] Windows DNS Server Denial of Service Vulnerability
Windows DNS Server Denial of Service Vulnerability Affected products named by the advisory: Windows Server 2008 R2 Service Pack 1; Windows Server 2008 R2 Service Pack 1 (Server Core installation); Windows Server 2008 Service Pack 2; Windows Server 2008 Service Pack 2 (Server Core installation); and 11 more. Affected products named by the advisory: Windows Server 2012 (Server Core installation); Windows Server 2012 R2 (Server Core installation); Windows Server 2016 (Server Core installation); Windows Server 2019 (Server Core installation); and 3 more.
High [CVE-2021-26900] Windows Win32k Elevation of Privilege Vulnerability
Windows Win32k Elevation of Privilege Vulnerability Affected products named by the advisory: Windows Server version 2004; Windows Server version 20H2; Windows Server, version 1909 (Server Core installation).
High [CVE-2021-26899] Windows UPnP Device Host Elevation of Privilege Vulnerability
Windows UPnP Device Host Elevation of Privilege Vulnerability Affected products named by the advisory: Windows Server 2008 R2 Service Pack 1; Windows Server 2008 R2 Service Pack 1 (Server Core installation); Windows Server 2008 Service Pack 2; Windows Server 2008 Service Pack 2 (Server Core installation); and 11 more. Affected products named by the advisory: Windows Server 2012 (Server Core installation); Windows Server 2012 R2 (Server Core installation); Windows Server 2016 (Server Core installation); Windows Server 2019 (Server Core installation); and 3 more.
High [CVE-2021-26891] Windows Container Execution Agent Elevation of Privilege Vulnerability
Windows Container Execution Agent Elevation of Privilege Vulnerability Affected products named by the advisory: Windows Server 2016; Windows Server 2016 (Server Core installation); Windows Server 2019; Windows Server 2019 (Server Core installation); and 3 more. Affected products named by the advisory: Windows Server version 2004; Windows Server version 20H2; Windows Server, version 1909 (Server Core installation).
High [CVE-2021-26890] Application Virtualization Remote Code Execution Vulnerability
Application Virtualization Remote Code Execution Vulnerability Affected products named by the advisory: Windows Server 2019; Windows Server 2019 (Server Core installation); Windows Server version 2004; Windows Server version 20H2; and 1 more. Affected products named by the advisory: Windows Server, version 1909 (Server Core installation).
High [CVE-2021-26889] Windows Update Stack Elevation of Privilege Vulnerability
Windows Update Stack Elevation of Privilege Vulnerability Affected products named by the advisory: Windows Server 2019; Windows Server 2019 (Server Core installation); Windows Server version 2004; Windows Server version 20H2; and 1 more. Affected products named by the advisory: Windows Server, version 1909 (Server Core installation).
High [CVE-2021-26887] Microsoft Windows Folder Redirection Elevation of Privilege Vulnerability
An elevation of privilege vulnerability exists in Microsoft Windows when Folder redirection has been enabled via Group Policy. When folder redirection file server is co-located with Terminal server, an attacker who successfully exploited the vulnerability would be able to begin redirecting another user's personal data to a created folder. To exploit the vulnerability, an attacker can create a new folder under the Folder Redirection root path and create a junction on a newly created User folder. When the new user logs in, Folder Redirection would start redirecting to the folder and copying personal data. This elevation of privilege vulnerability can only be addressed by reconfiguring Folder Redirection with Offline files and restricting permissions, and NOT via a security update for affected Windows Servers. See the FAQ section of this CVE for configuration guidance. Affected products named by the advisory: Windows Server 2008 R2 Service Pack 1; Windows Server 2008 R2 Service Pack 1 (Server Core installation); Windows Server 2008 Service Pack 2; Windows Server 2008 Service Pack 2 (Server Core installation); and 11 more. Affected products named by the advisory: Windows Server 2012 (Server Core installation); Windows Server 2012 R2 (Server Core installation); Windows Server 2016 (Server Core installation); Windows Server 2019 (Server Core installation); and 3 more.
High [CVE-2021-26882] Remote Access API Elevation of Privilege Vulnerability
Remote Access API Elevation of Privilege Vulnerability Affected products named by the advisory: Windows Server 2008 R2 Service Pack 1; Windows Server 2008 R2 Service Pack 1 (Server Core installation); Windows Server 2008 Service Pack 2; Windows Server 2008 Service Pack 2 (Server Core installation); and 11 more. Affected products named by the advisory: Windows Server 2012 (Server Core installation); Windows Server 2012 R2 (Server Core installation); Windows Server 2016 (Server Core installation); Windows Server 2019 (Server Core installation); and 3 more.
High [CVE-2021-26881] Microsoft Windows Media Foundation Remote Code Execution Vulnerability
Microsoft Windows Media Foundation Remote Code Execution Vulnerability Affected products named by the advisory: Windows Server 2008 R2 Service Pack 1; Windows Server 2008 R2 Service Pack 1 (Server Core installation); Windows Server 2012; Windows Server 2012 (Server Core installation); and 9 more. Affected products named by the advisory: Windows Server 2012 R2 (Server Core installation); Windows Server 2016 (Server Core installation); Windows Server 2019 (Server Core installation); Windows Server version 2004; and 2 more.
High [CVE-2021-26880] Windows Storage Spaces Controller Elevation of Privilege Vulnerability
Windows Storage Spaces Controller Elevation of Privilege Vulnerability Affected products named by the advisory: Windows Server 2016; Windows Server 2016 (Server Core installation); Windows Server 2019; Windows Server 2019 (Server Core installation); and 3 more. Affected products named by the advisory: Windows Server version 2004; Windows Server version 20H2; Windows Server, version 1909 (Server Core installation).
High [CVE-2021-26879] Windows Network Address Translation (NAT) Denial of Service Vulnerability
Windows Network Address Translation (NAT) Denial of Service Vulnerability Affected products named by the advisory: Windows Server 2012 R2; Windows Server 2012 R2 (Server Core installation); Windows Server 2016; Windows Server 2016 (Server Core installation); and 5 more. Affected products named by the advisory: Windows Server 2019 (Server Core installation); Windows Server version 2004; Windows Server version 20H2; Windows Server, version 1909 (Server Core installation).
High [CVE-2021-26876] OpenType Font Parsing Remote Code Execution Vulnerability
OpenType Font Parsing Remote Code Execution Vulnerability Affected products named by the advisory: Windows Server 2019; Windows Server 2019 (Server Core installation); Windows Server version 2004; Windows Server version 20H2; and 1 more. Affected products named by the advisory: Windows Server, version 1909 (Server Core installation).
High [CVE-2021-26874] Windows Overlay Filter Elevation of Privilege Vulnerability
Windows Overlay Filter Elevation of Privilege Vulnerability Affected products named by the advisory: Windows Server 2019; Windows Server 2019 (Server Core installation); Windows Server version 2004; Windows Server version 20H2; and 1 more. Affected products named by the advisory: Windows Server, version 1909 (Server Core installation).
High [CVE-2021-26873] Windows User Profile Service Elevation of Privilege Vulnerability
Windows User Profile Service Elevation of Privilege Vulnerability Affected products named by the advisory: Windows Server 2008 R2 Service Pack 1; Windows Server 2008 R2 Service Pack 1 (Server Core installation); Windows Server 2008 Service Pack 2; Windows Server 2008 Service Pack 2 (Server Core installation); and 11 more. Affected products named by the advisory: Windows Server 2012 (Server Core installation); Windows Server 2012 R2 (Server Core installation); Windows Server 2016 (Server Core installation); Windows Server 2019 (Server Core installation); and 3 more.
High [CVE-2021-26870] Windows Projected File System Elevation of Privilege Vulnerability
Windows Projected File System Elevation of Privilege Vulnerability Affected products named by the advisory: Windows Server 2019; Windows Server 2019 (Server Core installation); Windows Server version 2004; Windows Server version 20H2; and 1 more. Affected products named by the advisory: Windows Server, version 1909 (Server Core installation).
High [CVE-2021-26868] Windows Graphics Component Elevation of Privilege Vulnerability
Windows Graphics Component Elevation of Privilege Vulnerability Affected products named by the advisory: Windows Server 2012; Windows Server 2012 (Server Core installation); Windows Server 2012 R2; Windows Server 2012 R2 (Server Core installation); and 7 more. Affected products named by the advisory: Windows Server 2016 (Server Core installation); Windows Server 2019 (Server Core installation); Windows Server version 2004; Windows Server version 20H2; and 1 more.
High [CVE-2021-26866] Windows Update Service Elevation of Privilege Vulnerability
Windows Update Service Elevation of Privilege Vulnerability Affected products named by the advisory: Windows Server 2016; Windows Server 2016 (Server Core installation); Windows Server 2019; Windows Server 2019 (Server Core installation); and 3 more. Affected products named by the advisory: Windows Server version 2004; Windows Server version 20H2; Windows Server, version 1909 (Server Core installation).