Windows Server Vulnerabilities & Security Advisories
2401 advisories tracked · Microsoft Security Update Guide (MSRC) · 64 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: 112 critical, 1675 high, 723 medium, 6 low.
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 Windows Server advisories
High [CVE-2026-83698] Windows Client-Side Caching (CSC) Service Elevation of Privilege Vulnerability
Windows Client-Side Caching (CSC) Service 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-2026-83682] Windows TCP/IP Elevation of Privilege Vulnerability
Windows TCP/IP 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-2026-83679] Windows Defender Firewall Service Elevation of Privilege Vulnerability
Windows Defender Firewall Service Elevation of Privilege Vulnerability Affected product named by the advisory: Windows Server 2025.
High [CVE-2026-83676] Windows Installer Elevation of Privilege Vulnerability
Windows Installer Elevation of Privilege Vulnerability Affected products named by the advisory: Windows Server 2022; Windows Server 2025.
High [CVE-2026-83670] Function Discovery Service (fdwsd.dll) Information Disclosure Vulnerability
Function Discovery Service (fdwsd.dll) 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-2026-83665] Windows DHCP Server Denial of Service Vulnerability
Windows DHCP Server 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-2026-83659] Windows User Profile Service Elevation of Privilege Vulnerability
Windows User Profile Service 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-2026-83647] Windows Active Directory Domain Services Denial of Service Vulnerability
Windows Active Directory Domain Services Denial of Service 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-2026-83645] Active Directory Federation Services (AD FS) Denial of Service Vulnerability
Active Directory Federation Services (AD FS) 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-2026-83640] Windows NTFS Remote Code Execution Vulnerability
Windows NTFS 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-2026-83639] Windows Sensor Data Service Elevation of Privilege Vulnerability
Windows Sensor Data 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-2026-83638] Windows USB Driver Elevation of Privilege Vulnerability
Windows USB 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-2026-83634] Windows BitLocker Elevation of Privilege Vulnerability
Windows BitLocker Elevation of Privilege Vulnerability Affected products named by the advisory: Windows Server 2022; Windows Server 2025.
High [CVE-2026-83587] Windows Core Messaging Elevation of Privilege Vulnerability
Windows Core Messaging Elevation of Privilege Vulnerability Affected products named by the advisory: Windows Server 2019; Windows Server 2022; Windows Server 2025; Windows Server 2016.
High [CVE-2026-83585] Windows NTFS Elevation of Privilege Vulnerability
Windows NTFS 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-2026-83579] Windows Smart Card Elevation of Privilege Vulnerability
Windows Smart Card 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-2026-83574] Windows Search Service Elevation of Privilege Vulnerability
Windows Search Service 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-2026-83570] Windows Search Service Elevation of Privilege Vulnerability
Windows Search Service 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-2026-83568] Windows Kernel-Mode Drivers Elevation of Privilege Vulnerability
Windows Kernel-Mode Drivers Elevation of Privilege Vulnerability Affected product named by the advisory: Windows Server 2025.
High [CVE-2026-83566] Windows Win32k Elevation of Privilege Vulnerability
Windows Win32k Elevation of Privilege Vulnerability Affected product named by the advisory: Windows Server 2025.
High [CVE-2026-83523] Windows Image Acquisition Remote Code Execution Vulnerability
Windows Image Acquisition Remote Code Execution Vulnerability Affected product named by the advisory: Windows Server 2025.
High [CVE-2026-83522] Windows IKE Extension Spoofing Vulnerability
Windows IKE Extension 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-2026-83514] 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-2026-83511] Active Directory Federation Services (AD FS) Spoofing Vulnerability
Active Directory Federation Services (AD FS) Spoofing 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-2026-83509] Windows Setup Files Cleanup Elevation of Privilege Vulnerability
Windows Setup Files Cleanup 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-2026-83505] Windows Setup Files Cleanup Elevation of Privilege Vulnerability
Windows Setup Files Cleanup Elevation of Privilege Vulnerability Affected products named by the advisory: Windows Server 2019; Windows Server 2022; Windows Server 2025; Windows Server 2016.
High [CVE-2026-69454] Microsoft Azure Attestation service and Device Health Attestation Service Information Disclosure Vulnerability
Microsoft Azure Attestation service and Device Health Attestation Service Information Disclosure Vulnerability Affected products named by the advisory: Windows Server 2019; Windows Server 2022; Windows Server 2025.
High [CVE-2026-69326] Graphic Fonts Remote Code Execution Vulnerability
Graphic Fonts 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-2026-78459] Microsoft Internet Information Services Elevation of Privilege Vulnerability
Microsoft Internet Information 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-2026-69596] Windows Program Compatibility Assistant Service Elevation of Privilege Vulnerability
Windows Program Compatibility Assistant 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-2026-69783] Windows Update Elevation of Privilege Vulnerability
Windows Update Elevation of Privilege Vulnerability Affected product named by the advisory: Windows Server 2025.
High [CVE-2026-69765] Windows Storport Miniport Driver Remote Code Execution Vulnerability
Windows Storport Miniport Driver Remote Code Execution Vulnerability Affected product named by the advisory: Windows Server 2025.
High [CVE-2026-69736] Windows Credential Manager Elevation of Privilege Vulnerability
Windows Credential Manager 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-2026-70066] Windows DHCP Server Elevation of Privilege Vulnerability
Windows DHCP 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-2026-70051] Windows SmartScreen Elevation of Privilege Vulnerability
Windows SmartScreen Elevation of Privilege Vulnerability Affected products named by the advisory: Windows Server 2019; Windows Server 2022; Windows Server 2025.
High [CVE-2026-70006] Remote Desktop Client Remote Code Execution Vulnerability
Remote Desktop Client 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-2026-69992] Remote Desktop Services Remote Code Execution Vulnerability
Remote Desktop Services 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-2026-97789] Remote Desktop Client Remote Code Execution Vulnerability
Remote Desktop Client Remote Code Execution Vulnerability Affected products named by the advisory: Windows Server 2012; Windows Server 2012 R2; Windows Server 2016; Windows Server 2019; and 2 more. Affected products named by the advisory: Windows Server 2022; Windows Server 2025.
High [CVE-2026-69452] Windows Enterprise App Management Elevation of Privilege Vulnerability
Windows Enterprise App Management 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-2026-96920] Windows Program Compatibility Assistant Service Elevation of Privilege Vulnerability
Windows Program Compatibility Assistant Service Elevation of Privilege Vulnerability Affected products named by the advisory: Windows Server 2022; Windows Server 2025; Windows Server 2016; Windows Server 2019.
High [CVE-2026-96867] Windows NTFS Remote Code Execution Vulnerability
Windows NTFS Remote Code Execution Vulnerability Affected products named by the advisory: Windows Server 2012; Windows Server 2012 R2; Windows Server 2016; Windows Server 2019; and 2 more. Affected products named by the advisory: Windows Server 2022; Windows Server 2025.
High [CVE-2026-96861] Network Device Enrollment Service (NDES) Denial of Service Vulnerability
Network Device Enrollment Service (NDES) Denial of Service Vulnerability Affected products named by the advisory: Windows Server 2012; Windows Server 2016; Windows Server 2025; Windows Server 2012 R2; and 2 more. Affected products named by the advisory: Windows Server 2019; Windows Server 2022.
High [CVE-2026-96856] Windows Management Instrumentation Elevation of Privilege Vulnerability
Windows Management Instrumentation Elevation of Privilege Vulnerability Affected products named by the advisory: Windows Server 2012; Windows Server 2012 R2; Windows Server 2016; Windows Server 2019; and 2 more. Affected products named by the advisory: Windows Server 2025; Windows Server 2022.
High [CVE-2026-96862] Windows Spaceport.sys Elevation of Privilege Vulnerability
Windows Spaceport.sys Elevation of Privilege Vulnerability Affected products named by the advisory: Windows Server 2012; Windows Server 2012 R2; Windows Server 2016; Windows Server 2019; and 2 more. Affected products named by the advisory: Windows Server 2022; Windows Server 2025.
High [CVE-2026-96318] Windows Resume Elevation of Privilege Vulnerability
Windows Resume Elevation of Privilege Vulnerability Affected products named by the advisory: Windows Server 2012; Windows Server 2012 R2; Windows Server 2016; Windows Server 2019; and 2 more. Affected products named by the advisory: Windows Server 2022; Windows Server 2025.
High [CVE-2026-96313] Windows Push Notifications Elevation of Privilege Vulnerability
Windows Push Notifications Elevation of Privilege Vulnerability Affected products named by the advisory: Windows Server 2019; Windows Server 2022; Windows Server 2025.
High [CVE-2026-96308] Windows Installer Elevation of Privilege Vulnerability
Windows Installer Elevation of Privilege Vulnerability Affected products named by the advisory: Windows Server 2012 R2; Windows Server 2016; Windows Server 2019; Windows Server 2022; and 2 more. Affected products named by the advisory: Windows Server 2025.
High [CVE-2026-96306] Windows Sysmain Service Elevation of Privilege Vulnerability
Windows Sysmain Service Elevation of Privilege Vulnerability Affected products named by the advisory: Windows Server 2016; Windows Server 2019.
High [CVE-2026-96302] Windows Installer Elevation of Privilege Vulnerability
Windows Installer Elevation of Privilege Vulnerability Affected products named by the advisory: Windows Server 2025; Windows Server 2012; Windows Server 2012 R2; Windows Server 2016; and 2 more. Affected products named by the advisory: Windows Server 2019; Windows Server 2022.
High [CVE-2026-96248] Windows Host Guardian Service Denial of Service Vulnerability
Windows Host Guardian Service Denial of Service Vulnerability Affected products named by the advisory: Windows Server 2016; Windows Server 2019; Windows Server 2022; Windows Server 2025.
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