Microsoft Server Security Advisories & CVEs
360 advisories tracked · Microsoft Security Update Guide (MSRC) · direct feeds checked every minute; rate-limited backstops use a safe source cadence
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Official 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 advisories
Medium [CVE-2021-34519] Microsoft SharePoint Server Information Disclosure Vulnerability
Microsoft SharePoint Server Information Disclosure Vulnerability Affected products named by the advisory: Microsoft SharePoint Enterprise Server 2013 Service Pack 1; Microsoft SharePoint Enterprise Server 2016; Microsoft SharePoint Foundation 2013 Service Pack 1.
Medium [CVE-2021-34517] Microsoft SharePoint Server Spoofing Vulnerability
Microsoft SharePoint Server Spoofing Vulnerability Affected products named by the advisory: Microsoft SharePoint Enterprise Server 2013 Service Pack 1; Microsoft SharePoint Enterprise Server 2016; Microsoft SharePoint Foundation 2013 Service Pack 1; Microsoft SharePoint Server 2019.
Medium [CVE-2021-34509] Storage Spaces Controller Information Disclosure Vulnerability
Storage Spaces Controller Information Disclosure 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.
Medium [CVE-2021-34507] Windows Remote Assistance Information Disclosure Vulnerability
Windows Remote Assistance 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 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.
Medium [CVE-2021-34500] Windows Kernel Memory Information Disclosure Vulnerability
Windows Kernel Memory 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 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.
Medium [CVE-2021-34497] Windows MSHTML Platform Remote Code Execution Vulnerability
Windows MSHTML Platform Remote Code Execution Vulnerability Affected products named by the advisory: Windows Server 2008 R2 Service Pack 1; Windows Server 2008 Service Pack 2; Windows Server 2012; Windows Server 2012 R2; and 2 more. Affected products named by the advisory: Windows Server 2016; Windows Server 2019.
Medium [CVE-2021-34496] Windows GDI Information Disclosure Vulnerability
Windows GDI 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 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.
Medium [CVE-2021-34493] Windows Partition Management Driver Elevation of Privilege Vulnerability
Windows Partition Management Driver 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.
Medium [CVE-2021-34491] Win32k Information Disclosure Vulnerability
Win32k Information Disclosure 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 4 more. Affected products named by the advisory: Windows Server 2019 (Server Core installation); Windows Server version 2004; Windows Server version 20H2.
Medium [CVE-2021-33783] 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 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.
Medium [CVE-2021-33782] Windows Authenticode Spoofing Vulnerability
Windows Authenticode Spoofing 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 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.
Medium [CVE-2021-33765] Windows Installer Spoofing Vulnerability
Windows Installer Spoofing 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 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.
Medium [CVE-2021-33764] Windows Key Distribution Center Information Disclosure Vulnerability
Windows Key Distribution Center 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 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.
Medium [CVE-2021-33763] Windows Remote Access Connection Manager Information Disclosure Vulnerability
Windows Remote Access Connection Manager Information Disclosure 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 6 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.
Medium [CVE-2021-33760] Media Foundation Information Disclosure Vulnerability
Media Foundation Information Disclosure Vulnerability Affected products named by the advisory: Windows Server version 2004; Windows Server version 20H2; Windows Server, version 1909 (Server Core installation).
Medium [CVE-2021-33757] Windows Security Account Manager Remote Protocol Security Feature Bypass Vulnerability
Windows Security Account Manager Remote Protocol Security Feature Bypass 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 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.
Medium [CVE-2021-33755] Windows Hyper-V Denial of Service Vulnerability
Windows Hyper-V Denial of Service Vulnerability Affected products named by the advisory: Windows Server 2019; Windows Server 2019 (Server Core installation); Windows Server version 2004; Windows Server version 20H2.
Medium [CVE-2021-33744] Windows Secure Kernel Mode Security Feature Bypass Vulnerability
Windows Secure Kernel Mode Security Feature Bypass Vulnerability Affected products named by the advisory: Windows Server 2019; Windows Server 2019 (Server Core installation); Windows Server version 2004; Windows Server version 20H2.
Medium [CVE-2021-31961] Windows InstallService Elevation of Privilege Vulnerability
Windows InstallService 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.
Medium [CVE-2021-27052] Microsoft SharePoint Server Information Disclosure Vulnerability
Microsoft SharePoint Server Information Disclosure Vulnerability Affected products named by the advisory: Microsoft SharePoint Enterprise Server 2016; Microsoft SharePoint Server 2019.