Microsoft Server Windows Server Vulnerabilities & Security Advisories
1523 advisories tracked · Microsoft Security Update Guide (MSRC) · 61 listed in the CISA Known Exploited Vulnerabilities catalog
Every row below is a published Microsoft Server advisory that VulniPulse classified as Windows Server, with the CVEs, affected and fixed releases and exploitation status the vendor stated. Severity mix: 65 critical, 1088 high, 416 medium, 4 low.
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Source
Microsoft Security Update Guide (MSRC)
Polled via the official MSRC Security Update Guide RSS feed (api.msrc.microsoft.com, no credentials required), scoped to SERVER products only — Windows Server, Exchange, SQL Server, SharePoint, Hyper-V and companion server roles. Client-only CVEs (Edge, Office apps, consumer Windows) are filtered out via the monthly CVRF document's affected-product list.
Latest MS Server Windows Server advisories
High [CVE-2021-38639] Win32k Elevation of Privilege Vulnerability
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-2021-38638] Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability
Windows Ancillary Function Driver for WinSock 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-2021-38634] Microsoft Windows Update Client Elevation of Privilege Vulnerability
Microsoft Windows Update Client 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 2022; Windows Server version 2004; Windows Server version 20H2.
High [CVE-2021-38633] Windows Common Log File System Driver Elevation of Privilege Vulnerability
Windows Common Log File System Driver 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-2021-38630] Windows Event Tracing Elevation of Privilege Vulnerability
Windows Event Tracing 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 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 2022; Windows Server version 2004; and 1 more. Affected products named by the advisory: Windows Server version 20H2.
High [CVE-2021-38626] Windows Kernel Elevation of Privilege Vulnerability
Windows Kernel Elevation of Privilege Vulnerability Affected products named by the advisory: Windows Server 2008 Service Pack 2; Windows Server 2008 Service Pack 2 (Server Core installation).
High [CVE-2021-36975] Win32k Elevation of Privilege Vulnerability
Win32k Elevation of Privilege Vulnerability Affected products named by the advisory: Windows Server 2019; Windows Server 2019 (Server Core installation); Windows Server 2022; Windows Server version 2004; and 1 more. Affected products named by the advisory: Windows Server version 20H2.
High [CVE-2021-36974] Windows SMB Elevation of Privilege Vulnerability
Windows SMB 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 2022; Windows Server version 2004; and 1 more.
High [CVE-2021-36973] Windows Redirected Drive Buffering System Elevation of Privilege Vulnerability
Windows Redirected Drive Buffering System 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 2022; Windows Server version 2004; Windows Server version 20H2.
High [CVE-2021-36968] Windows DNS Elevation of Privilege Vulnerability
Windows DNS 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).
High [CVE-2021-36966] Windows Subsystem for Linux Elevation of Privilege Vulnerability
Windows Subsystem for Linux 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.
High [CVE-2021-36967] Windows WLAN AutoConfig Service Elevation of Privilege Vulnerability
Windows WLAN AutoConfig 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 2 more. Affected products named by the advisory: Windows Server version 2004; Windows Server version 20H2.
High [CVE-2021-36965] Windows WLAN AutoConfig Service Remote Code Execution Vulnerability
Windows WLAN AutoConfig Service 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 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-2021-36964] Windows Event Tracing Elevation of Privilege Vulnerability
Windows Event Tracing 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-2021-36960] Windows SMB Information Disclosure Vulnerability
Windows SMB Information Disclosure 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 2022; and 2 more.
High [CVE-2021-36954] Windows Bind Filter Driver Elevation of Privilege Vulnerability
Windows Bind Filter Driver Elevation of Privilege Vulnerability Affected products named by the advisory: Windows Server 2019; Windows Server 2019 (Server Core installation); Windows Server 2022; Windows Server version 2004; and 1 more. Affected products named by the advisory: Windows Server version 20H2.
High [CVE-2021-26435] Windows Scripting Engine Memory Corruption Vulnerability
Windows Scripting Engine Memory Corruption 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-2021-36958] Windows Print Spooler Remote Code Execution Vulnerability
A remote code execution vulnerability exists when the Windows Print Spooler service improperly performs privileged file operations. An attacker who successfully exploited this vulnerability could run arbitrary code with SYSTEM privileges. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. 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 10 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 2 more.
High [CVE-2021-36949] Microsoft Azure Active Directory Connect Authentication Bypass Vulnerability
Microsoft Azure Active Directory Connect Authentication Bypass Vulnerability Affected products named by the advisory: Azure Active Directory Connect Provisioning Agent; Microsoft Azure Active Directory Connect 1.X.Y.Z; Microsoft Azure Active Directory Connect 2.0.X.Y.
High [CVE-2021-36948] Windows Update Medic Service Elevation of Privilege Vulnerability
Windows Update Medic Service 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.