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-2026-50402] NTFS Elevation of Privilege Vulnerability
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-2026-50465] Windows DNS Client Tampering Vulnerability
Windows DNS Client Tampering Vulnerability Affected product named by the advisory: Windows Server 2025.
High [CVE-2026-50462] Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability
Windows Ancillary Function Driver for WinSock 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-2026-50457] Windows Runtime Elevation of Privilege Vulnerability
Windows Runtime Elevation of Privilege Vulnerability Affected products named by the advisory: Windows Server 2019; Windows Server 2025.
High [CVE-2026-50474] 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-2026-50444] Windows Server Update Service (WSUS) Elevation of Privilege Vulnerability
Windows Server Update Service (WSUS) 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-2026-50476] Windows Network Connections Service Elevation of Privilege Vulnerability
Windows Network Connections 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-2026-50429] Windows Kernel Information Disclosure Vulnerability
Windows Kernel Information Disclosure Vulnerability Affected products named by the advisory: Windows Server 2019; Windows Server 2022; Windows Server 2025; Windows Server 2016.
High [CVE-2026-50450] Windows Network Connections Service Elevation of Privilege Vulnerability
Windows Network Connections Service Elevation of Privilege Vulnerability Affected products named by the advisory: Windows Server 2019; Windows Server 2022; Windows Server 2025.
High [CVE-2026-50424] Windows Domain Controller Denial of Service Vulnerability
Windows Domain Controller Denial of Service Vulnerability Affected product named by the advisory: Windows Server 2025.
High [CVE-2026-50470] Windows Network Policy Server SNMP Information Disclosure Vulnerability
Windows Network Policy Server SNMP 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-2026-50479] Windows USB Hub Driver Elevation of Privilege Vulnerability
Windows USB Hub Driver Elevation of Privilege Vulnerability Affected products named by the advisory: Windows Server 2019; Windows Server 2022; Windows Server 2025.
High [CVE-2026-50480] Windows Web Proxy Auto-Discovery Protocol (WPAD) Elevation of Privilege Vulnerability
Windows Web Proxy Auto-Discovery Protocol (WPAD) Elevation of Privilege Vulnerability Affected products named by the advisory: Windows Server 2016; Windows Server 2012; Windows Server 2012 R2.
High [CVE-2026-50493] DirectX Graphics Kernel Elevation of Privilege Vulnerability
DirectX Graphics Kernel Elevation of Privilege Vulnerability Affected products named by the advisory: Windows Server 2019; Windows Server 2022; Windows Server 2025.
High [CVE-2026-50502] Windows Event Logging Service Remote Code Execution Vulnerability
Windows Event Logging Service 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-2026-50487] Windows DNS Client Elevation of Privilege Vulnerability
Windows DNS Client Elevation of Privilege Vulnerability Affected product named by the advisory: Windows Server 2025.
High [CVE-2026-50488] Clipboard User Service Elevation of Privilege Vulnerability
Clipboard User Service Elevation of Privilege Vulnerability Affected product named by the advisory: Windows Server 2025.
High [CVE-2026-50500] Windows Netlogon Elevation of Privilege Vulnerability
Windows Netlogon 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-2026-50499] Windows Print Spooler Elevation of Privilege Vulnerability
Windows Print Spooler Elevation of Privilege Vulnerability Affected products named by the advisory: Windows Server 2019; Windows Server 2022; Windows Server 2025.
High [CVE-2026-50490] Windows Installer Elevation of Privilege Vulnerability
Windows Installer 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.