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-2026-83741] Internet Explorer Elevation of Privilege Vulnerability
Internet Explorer Elevation of Privilege Vulnerability Affected products named by the advisory: Windows Server 2019; Windows Server 2022; Windows Server 2025.
High [CVE-2026-83586] 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-2026-83569] HID Parser Library Elevation of Privilege Vulnerability
HID Parser Library Elevation of Privilege Vulnerability Affected products named by the advisory: Windows Server 2019; Windows Server 2022; Windows Server 2025.
High [CVE-2026-70275] Windows CD-ROM File System Driver Remote Code Execution Vulnerability
Windows CD-ROM File System 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-2026-70163] Microsoft OpenSSH for Windows Denial of Service Vulnerability
Microsoft OpenSSH for Windows Denial of Service Vulnerability Affected products named by the advisory: Windows Server 2019; Windows Server 2022; Windows Server 2025.
High [CVE-2026-83902] Windows Direct Composition Elevation of Privilege Vulnerability
Windows Direct Composition Elevation of Privilege Vulnerability Affected products named by the advisory: Windows Server 2019; Windows Server 2022; Windows Server 2025.
High [CVE-2026-83879] Windows Overlay Filter Elevation of Privilege Vulnerability
Windows Overlay Filter 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-2026-83867] 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; Windows Server 2016.
High [CVE-2026-83868] Microsoft Bluetooth Driver Elevation of Privilege Vulnerability
Microsoft Bluetooth Driver Elevation of Privilege Vulnerability Affected products named by the advisory: Windows Server 2019; Windows Server 2022; Windows Server 2025.
High [CVE-2026-83901] Windows Win32 Kernel Subsystem Elevation of Privilege Vulnerability
Windows Win32 Kernel Subsystem Elevation of Privilege Vulnerability Affected products named by the advisory: Windows Server 2019; Windows Server 2022; Windows Server 2025.
High [CVE-2026-83866] Windows Win32k Elevation of Privilege Vulnerability
Windows Win32k Elevation of Privilege Vulnerability Affected products named by the advisory: Windows Server 2019; Windows Server 2022; Windows Server 2025; Windows Server 2016.
High [CVE-2026-83872] Windows TCP/IP Local Elevation of Privilege Vulnerability
Windows TCP/IP Local 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-2026-83862] Windows Network Load Balancing Remote Code Execution Vulnerability
Windows Network Load Balancing 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-2026-83855] Windows WLAN Service Denial of Service Vulnerability
Windows WLAN Service Denial of Service Vulnerability Affected product named by the advisory: Windows Server 2025.
High [CVE-2026-83851] 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.
High [CVE-2026-83846] Connected Devices Platform Service (Cdpsvc) Elevation of Privilege Vulnerability
Connected Devices Platform Service (Cdpsvc) Elevation of Privilege Vulnerability Affected products named by the advisory: Windows Server 2019; Windows Server 2022; Windows Server 2025.
High [CVE-2026-83842] 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.
High [CVE-2026-83838] Windows Bluetooth A2DP driver Elevation of Privilege Vulnerability
Windows Bluetooth A2DP driver Elevation of Privilege Vulnerability Affected products named by the advisory: Windows Server 2019; Windows Server 2022; Windows Server 2025; Windows Server 2016.
High [CVE-2026-83834] Windows Kernel-Mode Drivers Elevation of Privilege Vulnerability
Windows Kernel-Mode Drivers Elevation of Privilege Vulnerability Affected products named by the advisory: Windows Server 2019; Windows Server 2022; Windows Server 2025; Windows Server 2016.
High [CVE-2026-83827] Windows Bluetooth Port Driver Elevation of Privilege Vulnerability
Windows Bluetooth Port Driver Elevation of Privilege Vulnerability Affected products named by the advisory: Windows Server 2019; Windows Server 2022; Windows Server 2025; Windows Server 2016.
High [CVE-2026-83826] Windows Error Reporting Elevation of Privilege Vulnerability
Windows Error Reporting Elevation of Privilege Vulnerability Affected product named by the advisory: Windows Server 2025.
High [CVE-2026-83793] Windows Update Orchestrator Service Elevation of Privilege Vulnerability
Windows Update Orchestrator Service Elevation of Privilege Vulnerability Affected products named by the advisory: Windows Server 2022; Windows Server 2025.
High [CVE-2026-83759] Windows Encrypting File System (EFS) Remote Code Execution Vulnerability
Windows Encrypting File System (EFS) Remote Code Execution Vulnerability Affected products named by the advisory: Windows Server 2019; Windows Server 2022; Windows Server 2025; Windows Server 2016.
High [CVE-2026-83749] Windows Overlay Filter Elevation of Privilege Vulnerability
Windows Overlay Filter Elevation of Privilege Vulnerability Affected products named by the advisory: Windows Server 2019; Windows Server 2022; Windows Server 2025; Windows Server 2016.
High [CVE-2026-83740] Windows Hello Elevation of Privilege Vulnerability
Use after free in Windows Hello allows an authorized attacker to elevate privileges locally. Affected products named by the advisory: Windows Server 2019; Windows Server 2019 (Server Core installation); Windows Server 2022; Windows Server 2025; and 1 more. Affected products named by the advisory: Windows Server 2025 (Server Core installation).
High [CVE-2026-83727] Windows Overlay Filter Elevation of Privilege Vulnerability
Windows Overlay Filter 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-2026-83722] Microsoft Local Security Authority (LSA) Server Elevation of Privilege Vulnerability
Microsoft Local Security Authority (LSA) 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-2026-83715] Windows Error Reporting Tampering Vulnerability
Windows Error Reporting Tampering 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-2026-83712] 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.
High [CVE-2026-83707] Windows Event Tracing Elevation of Privilege Vulnerability
Windows Event Tracing Elevation of Privilege Vulnerability Affected products named by the advisory: Windows Server 2019; Windows Server 2022; Windows Server 2025; Windows Server 2016.
High [CVE-2026-83700] Windows Now Playing Session Manager Elevation of Privilege Vulnerability
Windows Now Playing Session Manager Elevation of Privilege Vulnerability Affected products named by the advisory: Windows Server 2019; Windows Server 2022; Windows Server 2025.
High [CVE-2026-83692] Windows Bind Filter Driver Elevation of Privilege Vulnerability
Windows Bind Filter Driver Elevation of Privilege Vulnerability Affected products named by the advisory: Windows Server 2022; Windows Server 2025.
High [CVE-2026-83687] Windows Connected User Experiences and Telemetry Elevation of Privilege Vulnerability
Windows Connected User Experiences and Telemetry Elevation of Privilege Vulnerability Affected product named by the advisory: Windows Server 2025.
High [CVE-2026-83669] Windows Error Reporting Elevation of Privilege Vulnerability
Windows Error Reporting Elevation of Privilege Vulnerability Affected products named by the advisory: Windows Server 2016; Windows Server 2019; Windows Server 2025; Windows Server 2022.
High [CVE-2026-83666] Active Directory Certificate Services (AD CS) Elevation of Privilege Vulnerability
Active Directory Certificate Services (AD CS) 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-2026-83655] Network Policy Server (NPS) Denial of Service Vulnerability
Network Policy Server (NPS) 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-2026-83654] Windows Modern Device Management (MDM) Elevation of Privilege Vulnerability
Windows Modern Device Management (MDM) Elevation of Privilege Vulnerability Affected products named by the advisory: Windows Server 2022; Windows Server 2025.
High [CVE-2026-83650] Windows Media Elevation of Privilege Vulnerability
Windows Media 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-2026-83644] Windows Audio Service Elevation of Privilege Vulnerability
Windows Audio 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-2026-83635] Role: DNS Server Denial of Service Vulnerability
Role: DNS 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-2026-83583] Windows Geotag Broker Elevation of Privilege Vulnerability
Windows Geotag Broker Elevation of Privilege Vulnerability Affected products named by the advisory: Windows Server 2019; Windows Server 2022; Windows Server 2025; Windows Server 2016.
High [CVE-2026-83516] Windows Local Security Authority Subsystem Service (LSASS) Denial of Service Vulnerability
Windows Local Security Authority Subsystem Service (LSASS) Denial of Service Vulnerability Affected products named by the advisory: Windows Server 2019; Windows Server 2022; Windows Server 2025.
High [CVE-2026-83499] Windows Server Update Service Elevation of Privilege Vulnerability
Windows Server Update 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-2026-69633] Windows Update Elevation of Privilege Vulnerability
Windows Update Elevation of Privilege Vulnerability Affected products named by the advisory: Windows Server 2019; Windows Server 2022; Windows Server 2025; Windows Server 2016.
High [CVE-2026-69743] Windows Program Compatibility Assistant Service Elevation of Privilege Vulnerability
Windows Program Compatibility Assistant Service Elevation of Privilege Vulnerability Affected product named by the advisory: Windows Server 2025.
High [CVE-2026-69650] Windows Key Distribution Center Elevation of Privilege Vulnerability
Windows Key Distribution Center 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-2026-69387] Windows Error Reporting Elevation of Privilege Vulnerability
Windows Error Reporting 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-2026-70580] Windows Credential Guard Spoofing Vulnerability
Windows Credential Guard Spoofing Vulnerability Affected products named by the advisory: Windows Server 2019; Windows Server 2022; Windows Server 2025.
High [CVE-2026-72955] Windows Application Compatibility Cache Elevation of Privilege Vulnerability
Windows Application Compatibility Cache Elevation of Privilege Vulnerability Affected products named by the advisory: Windows Server 2022; Windows Server 2025.
High [CVE-2026-68836] Windows kernel32.dll Elevation of Privilege Vulnerability
Windows kernel32.dll 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.
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