Microsoft Server Windows Server Vulnerabilities & Security Advisories
418 advisories tracked · Microsoft Security Update Guide (MSRC) · 5 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: 17 critical, 295 high, 122 medium, 3 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-2026-50359] Microsoft XML Core Services Elevation of Privilege Vulnerability
Microsoft XML Core Services 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-2026-56173] Windows WebView Elevation of Privilege Vulnerability
Windows WebView Elevation of Privilege Vulnerability Affected products named by the advisory: Windows Server 2019; Windows Server 2022; Windows Server 2025.
High [CVE-2026-56186] Windows Secure Channel Information Disclosure Vulnerability
Windows Secure Channel Information Disclosure 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-2026-56189] Microsoft Windows Media Foundation Remote Code Execution Vulnerability
Microsoft Windows Media Foundation 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-2026-54124] Windows Terminal Remote Code Execution Vulnerability
Windows Terminal Remote Code Execution Vulnerability Affected products named by the advisory: Windows Server 2022; Windows Server 2025.
High [CVE-2026-56194] Windows NFS Server Elevation of Privilege Vulnerability
Windows NFS Server 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-2026-56647] Windows Remote Access Service Infrastructure Elevation of Privilege Vulnerability
Windows Remote Access Service Infrastructure Elevation of Privilege Vulnerability Affected products named by the advisory: Windows Server 2019; Windows Server 2022; Windows Server 2025; Windows Server 2016; and 1 more. Affected products named by the advisory: Windows Server 2012 R2.
High [CVE-2026-56650] Windows Network File System Elevation of Privilege Vulnerability
Windows Network File System 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-2026-57091] Windows File History Service Elevation of Privilege Vulnerability
Windows File History Service Elevation of Privilege Vulnerability Affected products named by the advisory: Windows Server 2019; Windows Server 2022; Windows Server 2025; Windows Server 2016.
High [CVE-2026-57089] Windows SMB Server Network Transport Driver (srvnet.sys) Remote Code Execution Vulnerability
Windows SMB Server Network Transport Driver (srvnet.sys) 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-2026-57088] Extensible Storage Engine (ESENT) Elevation of Privilege Vulnerability
Extensible Storage Engine (ESENT) Elevation of Privilege Vulnerability Affected products named by the advisory: Windows Server 2019; Windows Server 2022; Windows Server 2025.
High [CVE-2026-57096] Windows Routing and Remote Access Service (RRAS) Elevation of Privilege Vulnerability
Windows Routing and Remote Access Service (RRAS) Elevation of Privilege Vulnerability Affected products named by the advisory: Windows Server 2019; Windows Server 2022; Windows Server 2025; Windows Server 2016; and 1 more. Affected products named by the advisory: Windows Server 2012 R2.
High [CVE-2026-58527] Windows Runtime Elevation of Privilege Vulnerability
Windows Runtime Elevation of Privilege Vulnerability Affected products named by the advisory: Windows Server 2022; Windows Server 2025.
High [CVE-2026-58538] Windows Bluetooth Service Elevation of Privilege Vulnerability
Windows Bluetooth Service Elevation of Privilege Vulnerability Affected products named by the advisory: Windows Server 2019; Windows Server 2022; Windows Server 2025.
High [CVE-2026-58531] Windows SMB Elevation of Privilege Vulnerability
Windows SMB 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-2026-58537] Microsoft NAT Helper Components (ipnathlp.dll) Elevation of Privilege Vulnerability
Microsoft NAT Helper Components (ipnathlp.dll) Elevation of Privilege Vulnerability Affected product named by the advisory: Windows Server 2025.
High [CVE-2026-58534] Windows Input Method Editor (IME) Elevation of Privilege Vulnerability
Windows Input Method Editor (IME) Elevation of Privilege Vulnerability Affected products named by the advisory: Windows Server 2019; Windows Server 2022; Windows Server 2025; Windows Server 2016.
High [CVE-2026-58536] 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-2026-58544] Windows Management Services Elevation of Privilege Vulnerability
Windows Management Services Elevation of Privilege Vulnerability Affected product named by the advisory: Windows Server 2025.
High [CVE-2026-58541] Microsoft DWM Core Library Elevation of Privilege Vulnerability
Microsoft DWM Core Library Elevation of Privilege Vulnerability Affected products named by the advisory: Windows Server 2019; Windows Server 2022; Windows Server 2025; Windows Server 2016.