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
Medium [CVE-2026-58528] Windows USB Audio Class Driver Information Disclosure Vulnerability
Windows USB Audio Class Driver Information Disclosure Vulnerability Affected products named by the advisory: Windows Server 2019; Windows Server 2022; Windows Server 2025.
Medium [CVE-2026-58547] Windows Universal Plug and Play (UPnP) Device Host Elevation of Privilege Vulnerability
Windows Universal Plug and Play (UPnP) Device Host Elevation of Privilege Vulnerability Affected products named by the advisory: Windows Server 2019; Windows Server 2022; Windows Server 2025.
Medium [CVE-2026-58638] Windows Boot Loader Security Feature Bypass Vulnerability
Windows Boot Loader Security Feature Bypass 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.
Medium [CVE-2026-50659] .NET Spoofing Vulnerability
.NET Spoofing Vulnerability Affected products named by the advisory: Microsoft.NET Framework 4.8 on Windows Server 2016; Microsoft.NET Framework 4.8 on Windows Server 2012; Microsoft.NET Framework 4.8 on Windows Server 2012 R2; Microsoft.NET Framework 3.5 AND 4.8 on Windows Server 2019; and 4 more. Affected products named by the advisory: Microsoft .NET Framework 3.5 AND 4.8 on Windows Server 2022; Microsoft .NET Framework 3.5 AND 4.7.2 on Windows Server 2019; Microsoft .NET Framework 3.5 AND 4.7.2 on Windows Server 2016; Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2012.
Critical [CVE-2026-45480] Azure Active Directory Elevation of Privilege Vulnerability
Improper authentication in Azure Active Directory allows an unauthorized attacker to elevate privileges over a network.
Critical [CVE-2026-45657] Windows Kernel Remote Code Execution Vulnerability
Windows Kernel Remote Code Execution Vulnerability Affected products named by the advisory: Windows Server 2022; Windows Server 2025.
Critical [CVE-2026-45602] Windows Dynamic Host Configuration Protocol (DHCP) Tampering Vulnerability
Windows Dynamic Host Configuration Protocol (DHCP) 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.
Critical [CVE-2026-44815] DHCP Client Service Remote Code Execution Vulnerability
DHCP Client 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-2026-41108] Windows DNS Client Elevation of Privilege Vulnerability
Windows DNS Client 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-2026-40404] Windows Universal Disk Format File System Driver (UDFS) Elevation of Privilege Vulnerability
Windows Universal Disk Format File System Driver (UDFS) Elevation of Privilege Vulnerability Affected products named by the advisory: Windows Server 2022; Windows Server 2019; Windows Server 2025; Windows Server 2016; and 2 more. Affected products named by the advisory: Windows Server 2012 R2.
High [CVE-2026-33828] Windows Device Health Attestation (DHA) Elevation of Privilege Vulnerability
Windows Device Health Attestation (DHA) Elevation of Privilege Vulnerability Affected products named by the advisory: Windows Server 2019; Windows Server 2022; Windows Server 2025; Windows Server 2016.
High [CVE-2026-45640] Windows Bluetooth Port Driver Elevation of Privilege Vulnerability
Windows Bluetooth Port Driver Elevation of Privilege Vulnerability Affected products named by the advisory: Windows Server 2022; Windows Server 2025.
High [CVE-2026-45648] Windows Active Directory Domain Services Remote Code Execution Vulnerability
Windows Active Directory Domain Services Remote Code Execution Vulnerability Affected products named by the advisory: Windows Server 2022; Windows Server 2025.
High [CVE-2026-47288] Windows Kerberos Key Distribution Center (KDC) Remote Code Execution
Windows Kerberos Key Distribution Center (KDC) Remote Code Execution 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-2026-41092] Microsoft Kinect Elevation of Privilege Vulnerability
Microsoft Kinect 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-2026-45588] Secure Boot Security Feature Bypass Vulnerability
Secure Boot Security Feature Bypass 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-2026-48563] 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.
High [CVE-2026-42828] Windows Projected File System Elevation of Privilege Vulnerability
Windows Projected File System Elevation of Privilege Vulnerability Affected products named by the advisory: Windows Server 2022; Windows Server 2019; Windows Server 2025.
High [CVE-2026-45586] Windows Collaborative Translation Framework (CTFMON) Elevation of Privilege Vulnerability
Windows Collaborative Translation Framework (CTFMON) 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-2026-45592] Windows Internet (wininet.dll) Elevation of Privilege Vulnerability
Windows Internet (wininet.dll) 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-2026-45593] Windows SDK Elevation of Privilege Vulnerability
Windows SDK Elevation of Privilege Vulnerability Affected products named by the advisory: Windows Server 2019; Windows Server 2022; Windows Server 2025.
High [CVE-2026-45597] Windows UI Automation Manager (uiamanager.dll) Elevation of Privilege Vulnerability
Windows UI Automation Manager (uiamanager.dll) Elevation of Privilege Vulnerability Affected products named by the advisory: Windows Server 2022; Windows Server 2025.
High [CVE-2026-45599] Windows UPnP Device Host Remote Code Execution Vulnerability
Windows UPnP Device Host 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-2026-45636] Windows NTFS Remote Code Execution Vulnerability
Windows NTFS Remote Code Execution Vulnerability Affected products named by the advisory: Windows Server 2022; Windows Server 2019; Windows Server 2025; Windows Server 2016; and 2 more. Affected products named by the advisory: Windows Server 2012 R2.
High [CVE-2026-45654] Secure Boot Security Feature Bypass Vulnerability
Secure Boot Security Feature Bypass Vulnerability Affected product named by the advisory: Windows Server 2025.
High [CVE-2026-45658] Windows BitLocker Security Feature Bypass Vulnerability
Windows BitLocker Security Feature Bypass 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-2026-42910] Windows Hotpatch Monitoring Service Elevation of Privilege Vulnerability
Windows Hotpatch Monitoring Service Elevation of Privilege Vulnerability Affected product named by the advisory: Windows Server 2025.
High [CVE-2026-47656] Windows Boot Manager Security Feature Bypass Vulnerability
Windows Boot Manager Security Feature Bypass 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-2026-48574] Windows Media Remote Code Execution Vulnerability
Windows Media 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-2026-42836] Windows Function Discovery Service (fdwsd.dll) Elevation of Privilege Vulnerability
Windows Function Discovery Service (fdwsd.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.
High [CVE-2026-42905] Windows DWM Core Library Elevation of Privilege Vulnerability
Windows 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; and 2 more. Affected products named by the advisory: Windows Server 2012 R2.
High [CVE-2026-42916] NT OS Kernel Elevation of Privilege Vulnerability
NT OS Kernel 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-2026-42913] Remote Desktop Client Remote Code Execution Vulnerability
Remote Desktop Client Remote Code Execution Vulnerability Affected products named by the advisory: Windows Server 2022; Windows Server 2025.
High [CVE-2026-42981] Windows Performance Monitor Remote Code Execution Vulnerability
Windows Performance Monitor Remote Code Execution Vulnerability Affected products named by the advisory: Windows Server 2022; Windows Server 2025.
High [CVE-2026-44809] Windows Common Log File System Driver Elevation of Privilege Vulnerability
Windows Common Log File System Driver Elevation of Privilege Vulnerability Affected product named by the advisory: Windows Server 2025.
High [CVE-2026-44810] Microsoft Cryptographic Services Elevation of Privilege Vulnerability
Microsoft Cryptographic Services Elevation of Privilege Vulnerability Affected products named by the advisory: Windows Server 2022; Windows Server 2025.
High [CVE-2026-42987] Windows Deployment Services (WDS) Remote Code Execution
Windows Deployment Services (WDS) Remote Code Execution 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.
Medium [CVE-2026-45606] Microsoft UxTheme Library (uxtheme.dll) Denial of Service Vulnerability
Microsoft UxTheme Library (uxtheme.dll) 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.
Medium [CVE-2026-45634] Windows DHCP Client Information Disclosure Vulnerability
Windows DHCP Client 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.
Medium [CVE-2026-50508] Windows NTLM Spoofing Vulnerability
Windows NTLM Spoofing Vulnerability Affected products named by the advisory: Windows Server 2022; Windows Server,; Windows Server 2016; Windows Server 2012; and 1 more. Affected products named by the advisory: Windows Server 2012 R2.
Medium [CVE-2026-45594] Windows Application Identity (AppID) Information Disclosure Vulnerability
Windows Application Identity (AppID) Information Disclosure Vulnerability Affected products named by the advisory: Windows Server 2019; Windows Server 2022; Windows Server 2025; Windows Server 2016.
Medium [CVE-2026-45604] Windows Managed Installer Information Disclosure Vulnerability
Windows Managed Installer Information Disclosure Vulnerability Affected product named by the advisory: Windows Server 2025.
Medium [CVE-2026-45595] Windows Mark of the Web Security Feature Bypass Vulnerability
Windows Mark of the Web Security Feature Bypass 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.
Medium [CVE-2026-50507] Windows BitLocker Security Feature Bypass Vulnerability
Windows BitLocker Security Feature Bypass 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.
Medium [CVE-2026-42903] Windows Kerberos Denial of Service Vulnerability
Windows Kerberos 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.
Medium [CVE-2026-42906] Windows Shell Information Disclosure Vulnerability
Windows Shell Information Disclosure Vulnerability Affected products named by the advisory: Windows Server 2022; Windows Server 2025.
Medium [CVE-2026-42907] Windows Shell Information Disclosure Vulnerability
Windows Shell Information Disclosure Vulnerability Affected products named by the advisory: Windows Server 2019; Windows Server 2022; Windows Server 2025.
Medium [CVE-2026-42915] Microsoft Windows VMSwitch Denial of Service Vulnerability
Microsoft Windows VMSwitch Denial of Service Vulnerability Affected products named by the advisory: Windows Server 2022; Windows Server 2025.
Medium [CVE-2026-42968] Windows Telephony Server Information Disclosure Vulnerability
Windows Telephony Server 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.
Medium [CVE-2026-42972] Windows Hyper-V Information Disclosure Vulnerability
Windows Hyper-V 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.
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