Microsoft Server Security Advisories & CVEs
59 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
Critical [CVE-2024-30080] Microsoft Message Queuing (MSMQ) Remote Code Execution Vulnerability
Microsoft Message Queuing (MSMQ) 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 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 1 more.
Critical [CVE-2024-21410] Microsoft Exchange Server Elevation of Privilege Vulnerability
Microsoft Exchange Server Elevation of Privilege Vulnerability Affected products named by the advisory: Microsoft Exchange Server 2016 Cumulative Update 23; Microsoft Exchange Server 2019 Cumulative Update 13; Microsoft Exchange Server 2019 Cumulative Update 14.
Critical [CVE-2023-21709] Microsoft Exchange Server Elevation of Privilege Vulnerability
Microsoft Exchange Server Elevation of Privilege Vulnerability Affected products named by the advisory: Microsoft Exchange Server 2016 Cumulative Update 23; Microsoft Exchange Server 2019 Cumulative Update 12; Microsoft Exchange Server 2019 Cumulative Update 13.
Critical [CVE-2023-35385] Microsoft Message Queuing (MSMQ) Remote Code Execution Vulnerability
Microsoft Message Queuing (MSMQ) Remote Code Execution Vulnerability Affected products named by the advisory: Windows Server 2008 Service Pack 2; Windows Server 2008 R2 Service Pack 1; Windows Server 2008 R2 Service Pack 1 (Server Core installation); Windows Server 2008 Service Pack 2 (Server Core installation); and 9 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 1 more.
Critical [CVE-2023-21716] Microsoft Word Remote Code Execution Vulnerability
Microsoft Word Remote Code Execution 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; and 2 more. Affected products named by the advisory: Microsoft SharePoint Server Subscription Edition; SharePoint Server Subscription Edition Language Pack.
Critical [CVE-2023-21692] Microsoft Protected Extensible Authentication Protocol (PEAP) Remote Code Execution Vulnerability
Microsoft Protected Extensible Authentication Protocol (PEAP) Remote Code Execution Vulnerability Affected products named by the advisory: Windows Server 2008 Service Pack 2; Windows Server 2008 R2 Service Pack 1; Windows Server 2008 R2 Service Pack 1 (Server Core installation); Windows Server 2008 Service Pack 2 (Server Core installation); and 9 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 1 more.
Critical [CVE-2023-21690] Microsoft Protected Extensible Authentication Protocol (PEAP) Remote Code Execution Vulnerability
Microsoft Protected Extensible Authentication Protocol (PEAP) 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 7 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.
Critical [CVE-2023-21803] Windows iSCSI Discovery Service Remote Code Execution Vulnerability
Windows iSCSI Discovery Service Remote Code Execution Vulnerability Affected products named by the advisory: Windows Server 2008 Service Pack 2; Windows Server 2008 Service Pack 2 (Server Core installation).
Critical [CVE-2021-26443] Microsoft Virtual Machine Bus (VMBus) Remote Code Execution Vulnerability
Microsoft Virtual Machine Bus (VMBus) Remote Code Execution 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.
Critical [CVE-2021-38647] Open Management Infrastructure (OMI) Remote Code Execution Vulnerability
Open Management Infrastructure (OMI) Remote Code Execution Vulnerability Affected product named by the advisory: System Center Operations Manager (SCOM).
Critical [CVE-2021-26432] Windows Services for NFS ONCRPC XDR Driver Remote Code Execution Vulnerability
Windows Services for NFS ONCRPC XDR Driver Remote Code Execution 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.
Critical [CVE-2021-26424] Windows TCP/IP Remote Code Execution Vulnerability
Windows TCP/IP 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 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.
Critical [CVE-2021-34458] Windows Kernel Remote Code Execution Vulnerability
Windows Kernel Remote Code Execution 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.
Critical [CVE-2021-34523] Microsoft Exchange Server Elevation of Privilege Vulnerability
Microsoft Exchange Server Elevation of Privilege Vulnerability Affected products named by the advisory: Microsoft Exchange Server 2013 Cumulative Update 23; Microsoft Exchange Server 2016 Cumulative Update 19; Microsoft Exchange Server 2016 Cumulative Update 20; Microsoft Exchange Server 2019 Cumulative Update 8; and 1 more. Affected products named by the advisory: Microsoft Exchange Server 2019 Cumulative Update 9.
Critical [CVE-2021-34473] Microsoft Exchange Server Remote Code Execution Vulnerability
Microsoft Exchange Server Remote Code Execution Vulnerability Affected products named by the advisory: Microsoft Exchange Server 2013 Cumulative Update 23; Microsoft Exchange Server 2016 Cumulative Update 19; Microsoft Exchange Server 2016 Cumulative Update 20; Microsoft Exchange Server 2019 Cumulative Update 8; and 1 more. Affected products named by the advisory: Microsoft Exchange Server 2019 Cumulative Update 9.
Critical [CVE-2021-26897] Windows DNS Server Remote Code Execution Vulnerability
Windows DNS Server 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.
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).
Critical [CVE-2021-27078] Microsoft Exchange Server Remote Code Execution Vulnerability
Microsoft Exchange Server Remote Code Execution Vulnerability Affected products named by the advisory: Microsoft Exchange Server 2013 Cumulative Update 23; Microsoft Exchange Server 2016 Cumulative Update 18; Microsoft Exchange Server 2016 Cumulative Update 19; Microsoft Exchange Server 2019 Cumulative Update 7; and 1 more. Affected products named by the advisory: Microsoft Exchange Server 2019 Cumulative Update 8.
Critical [CVE-2021-26855] Microsoft Exchange Server Remote Code Execution Vulnerability
Microsoft Exchange Server Remote Code Execution Vulnerability Affected products named by the advisory: Microsoft Exchange Server 2016 Cumulative Update 19; Microsoft Exchange Server 2019 Cumulative Update 8; Microsoft Exchange Server 2019; Microsoft Exchange Server 2013 Cumulative Update 22; and 20 more. Affected products named by the advisory: Microsoft Exchange Server 2019 Cumulative Update 2; Microsoft Exchange Server 2016 Cumulative Update 13; Microsoft Exchange Server 2013 Cumulative Update 23; Microsoft Exchange Server 2019 Cumulative Update 3; and 16 more.