Microsoft Server Security Advisories & CVEs
1207 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
High [CVE-2026-67642] Microsoft SQL Server Remote Code Execution Vulnerability
Microsoft SQL Server Remote Code Execution Vulnerability Affected product named by the advisory: Microsoft SQL Server 2025.
High [CVE-2026-67388] Microsoft SQL Server Remote Code Execution Vulnerability
Microsoft SQL Server Remote Code Execution Vulnerability Affected products named by the advisory: Microsoft SQL Server 2025; Microsoft SQL Server 2017; Microsoft SQL Server 2019; Microsoft SQL Server 2022.
High [CVE-2026-67381] Microsoft SQL Server Elevation of Privilege Vulnerability
Microsoft SQL Server Elevation of Privilege Vulnerability Affected products named by the advisory: Microsoft SQL Server 2022; Microsoft SQL Server 2025; Microsoft SQL Server 2017; Microsoft SQL Server 2019.
High [CVE-2026-56172] Windows VHD miniport driver Elevation of Privilege Vulnerability
Windows VHD miniport driver Elevation of Privilege Vulnerability Affected products named by the advisory: Windows Server 2019; Windows Server 2022; Windows Server 2025.
High [CVE-2026-62759] Windows Netlogon Spoofing Vulnerability
Windows Netlogon Spoofing Vulnerability Affected products named by the advisory: Windows Server 2019; Windows Server 2022; Windows Server 2025; Windows Server 2016; and 2 more. Affected products named by the advisory: Windows Server 2012 R2.
High [CVE-2026-56198] Microsoft Trace Data Helper Elevation of Privilege Vulnerability
Microsoft Trace Data Helper Elevation of Privilege Vulnerability Affected product named by the advisory: Windows Server 2025.
High [CVE-2026-56177] Windows Server Elevation of Privilege Vulnerability
Windows Server Elevation of Privilege Vulnerability Affected products named by the advisory: Windows Server 2019; Windows Server 2022; Windows Server 2025; Windows Server 2016.
High [CVE-2026-85880] Windows Advanced Local Procedure Call (ALPC) Elevation of Privilege Vulnerability
Windows Advanced Local Procedure Call (ALPC) Elevation of Privilege Vulnerability Affected products named by the advisory: Windows Server 2019; Windows Server 2022; Windows Server 2016; Windows Server 2012; and 1 more. Affected products named by the advisory: Windows Server 2012 R2.
High [CVE-2026-84001] Windows Key Distribution Center Denial of Service Vulnerability
Windows Key Distribution Center Denial of Service Vulnerability Affected products named by the advisory: Windows Server 2019; Windows Server 2022; Windows Server 2025; Windows Server 2016; and 2 more. Affected products named by the advisory: Windows Server 2012 R2.
High [CVE-2026-83999] Windows Resilient File System (ReFS) Deduplication Service Elevation of Privilege Vulnerability
Windows Resilient File System (ReFS) Deduplication Service Elevation of Privilege Vulnerability Affected product named by the advisory: Windows Server 2025.
High [CVE-2026-69492] Windows Partition Management Driver Elevation of Privilege Vulnerability
Windows Partition Management Driver Elevation of Privilege Vulnerability Affected products named by the advisory: Windows Server 2019; Windows Server 2022; Windows Server 2025; Windows Server 2016; and 2 more. Affected products named by the advisory: Windows Server 2012 R2.
High [CVE-2026-72940] Windows Schannel Remote Code Execution Vulnerability
Windows Schannel Remote Code Execution Vulnerability Affected products named by the advisory: Windows Server 2022; Windows Server 2025.
High [CVE-2026-72949] Windows SMB Server Network Transport Driver (srvnet.sys) Denial of Service Vulnerability
Windows SMB Server Network Transport Driver (srvnet.sys) Denial of Service Vulnerability Affected products named by the advisory: Windows Server 2022; Windows Server 2025.
High [CVE-2026-83942] Windows Kernel Elevation of Privilege Vulnerability
Windows Kernel Elevation of Privilege Vulnerability Affected products named by the advisory: Windows Server 2019; Windows Server 2022; Windows Server 2025.
High [CVE-2026-81355] Virtual Hard Disk (VHD) Miniport Driver Remote Code Execution Vulnerability
Virtual Hard Disk (VHD) Miniport Driver Remote Code Execution Vulnerability Affected products named by the advisory: Windows Server 2019; Windows Server 2022; Windows Server 2025; Windows Server 2016; and 2 more. Affected products named by the advisory: Windows Server 2012 R2.
High [CVE-2026-80093] Windows Cloud Files Mini Filter Driver Elevation of Privilege Vulnerability
Windows Cloud Files Mini Filter Driver Elevation of Privilege Vulnerability Affected products named by the advisory: Windows Server 2019; Windows Server 2022; Windows Server 2025.
High [CVE-2026-80083] Windows Hyper-V Remote Code Execution Vulnerability
Windows Hyper-V Remote Code Execution Vulnerability Affected products named by the advisory: Windows Server 2022; Windows Server 2025.
High [CVE-2026-80077] Remote Desktop Client Remote Code Execution Vulnerability
Heap-based buffer overflow in Remote Desktop Client allows an unauthorized attacker to execute code over a network. Affected product named by the advisory: Remote Desktop client for Windows Desktop.
High [CVE-2026-67379] Microsoft SQL Server Remote Code Execution Vulnerability
Microsoft SQL Server Remote Code Execution Vulnerability Affected products named by the advisory: Microsoft SQL Server 2025; Microsoft SQL Server 2022; Microsoft SQL Server 2019.
High [CVE-2026-67376] Microsoft SQL Server Denial of Service Vulnerability
Microsoft SQL Server Denial of Service Vulnerability Affected products named by the advisory: Microsoft SQL Server 2017; Microsoft SQL Server 2019; Microsoft SQL Server 2022; Microsoft SQL Server 2025.