Microsoft Server security updates, April 2026 (Patch Tuesday 2026-04-14)

Every Microsoft server-product CVE that the Microsoft Security Update Guide published in April 2026, including the Patch Tuesday release on 2026-04-14 and any out-of-band updates. Client-only products (Edge, Office apps, consumer Windows) are not tracked.

Advisories: 110
Critical: 1
High: 79
In CISA KEV: 3

Microsoft server CVEs, April 2026

Apr 14, 2026
Critical [CVE-2026-33824] Windows Internet Key Exchange (IKE) Service Extensions Remote Code Execution Vulnerability
Critical9.8ExploitedCISA KEV
Apr 14, 2026
High [CVE-2026-33827] Windows TCP/IP Remote Code Execution Vulnerability
High8.1
Apr 14, 2026
High [CVE-2026-33104] Win32k Elevation of Privilege Vulnerability
High7.0
Apr 14, 2026
High [CVE-2026-33101] Windows Print Spooler Elevation of Privilege Vulnerability
High7.8
Apr 14, 2026
High [CVE-2026-33100] Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability
High7.0
Apr 14, 2026
High [CVE-2026-33099] Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability
High7.0
Apr 14, 2026
High [CVE-2026-32225] Windows Shell Security Feature Bypass Vulnerability
High8.8
Apr 14, 2026
High [CVE-2026-32164] Windows User Interface Core Elevation of Privilege Vulnerability
High7.8
Apr 14, 2026
High [CVE-2026-32163] Windows User Interface Core Elevation of Privilege Vulnerability
High7.8
Apr 14, 2026
High [CVE-2026-32162] Windows COM Elevation of Privilege Vulnerability
High8.4
Apr 14, 2026
High [CVE-2026-32155] Desktop Window Manager Elevation of Privilege Vulnerability
High7.8
Apr 14, 2026
High [CVE-2026-32150] Windows Function Discovery Service (fdwsd.dll) Elevation of Privilege Vulnerability
High7.0
Apr 14, 2026
High [CVE-2026-32149] Windows Hyper-V Remote Code Execution Vulnerability
High7.3
Apr 14, 2026
High [CVE-2026-32091] Microsoft Brokering File System Elevation of Privilege Vulnerability
High8.4
Apr 14, 2026
High [CVE-2026-32080] Windows WalletService Elevation of Privilege Vulnerability
High7.0
Apr 14, 2026
High [CVE-2026-32078] Windows Projected File System Elevation of Privilege Vulnerability
High7.8
Apr 14, 2026
High [CVE-2026-32077] Windows UPnP Device Host Elevation of Privilege Vulnerability
High7.8
Apr 14, 2026
High [CVE-2026-32076] Windows Storage Spaces Controller Elevation of Privilege Vulnerability
High7.8
Apr 14, 2026
High [CVE-2026-32074] Windows Projected File System Elevation of Privilege Vulnerability
High7.8
Apr 14, 2026
High [CVE-2026-32070] Windows Common Log File System Driver Elevation of Privilege Vulnerability
High7.0
Apr 14, 2026
High [CVE-2026-32068] Windows Simple Search and Discovery Protocol (SSDP) Service Elevation of Privilege Vulnerability
High7.0
Apr 14, 2026
High [CVE-2026-27928] Windows Hello Security Feature Bypass Vulnerability
High8.7
Apr 14, 2026
High [CVE-2026-27923] Desktop Window Manager Elevation of Privilege Vulnerability
High7.8
Apr 14, 2026
High [CVE-2026-27916] Windows UPnP Device Host Elevation of Privilege Vulnerability
High7.8
Apr 14, 2026
High [CVE-2026-27914] Microsoft Management Console Elevation of Privilege Vulnerability
High7.8
Apr 14, 2026
High [CVE-2026-27913] Windows BitLocker Security Feature Bypass Vulnerability
High7.7
Apr 14, 2026
High [CVE-2026-27912] Windows Kerberos Elevation of Privilege Vulnerability
High8.0
Apr 14, 2026
High [CVE-2026-27910] Windows Installer Elevation of Privilege Vulnerability
High7.8
Apr 14, 2026
High [CVE-2026-27909] Windows Search Service Elevation of Privilege Vulnerability
High7.8
Apr 14, 2026
High [CVE-2026-26184] Windows Projected File System Elevation of Privilege Vulnerability
High7.8
Apr 14, 2026
High [CVE-2026-26178] Windows Advanced Rasterization Platform Elevation of Privilege Vulnerability
High8.8
Apr 14, 2026
High [CVE-2026-26176] Windows Client Side Caching driver (csc.sys) Elevation of Privilege Vulnerability
High7.8
Apr 14, 2026
High [CVE-2026-26173] Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability
High7.0
Apr 14, 2026
High [CVE-2026-26172] Windows Push Notifications Elevation of Privilege Vulnerability
High7.8
Apr 14, 2026
High [CVE-2026-26170] PowerShell Elevation of Privilege Vulnerability
High7.8
Apr 14, 2026
High [CVE-2026-26163] Windows Kernel Elevation of Privilege Vulnerability
High7.8
Apr 14, 2026
High [CVE-2026-26159] Remote Desktop Licensing Service Elevation of Privilege Vulnerability
High7.8
Apr 14, 2026
High [CVE-2026-26156] Windows Hyper-V Remote Code Execution Vulnerability
High7.8
Apr 14, 2026
High [CVE-2026-26153] Windows Encrypted File System (EFS) Elevation of Privilege Vulnerability
High7.8
Apr 14, 2026
High [CVE-2026-26152] Microsoft Cryptographic Services Elevation of Privilege Vulnerability
High7.0
Apr 14, 2026
High [CVE-2026-33826] Windows Active Directory Remote Code Execution Vulnerability
High8.0
Apr 14, 2026
High [CVE-2026-33120] Microsoft SQL Server Remote Code Execution Vulnerability
High8.8
Apr 14, 2026
High [CVE-2026-33098] Windows Container Isolation FS Filter Driver Elevation of Privilege Vulnerability
High7.8
Apr 14, 2026
High [CVE-2026-33096] HTTP.sys Denial of Service Vulnerability
High7.5
Apr 14, 2026
High [CVE-2026-32222] Windows Win32k Elevation of Privilege Vulnerability
High7.8
Apr 14, 2026
High [CVE-2026-32221] Windows Graphics Component Remote Code Execution Vulnerability
High8.4
Apr 14, 2026
High [CVE-2026-32219] Microsoft Brokering File System Elevation of Privilege Vulnerability
High7.0
Apr 14, 2026
High [CVE-2026-32183] Windows Snipping Tool Remote Code Execution Vulnerability
High7.8
Apr 14, 2026
High [CVE-2026-32165] Windows User Interface Core Elevation of Privilege Vulnerability
High7.8
Apr 14, 2026
High [CVE-2026-32160] Windows Push Notifications Elevation of Privilege Vulnerability
High7.8
Apr 14, 2026
High [CVE-2026-32157] Remote Desktop Client Remote Code Execution Vulnerability
High8.8
Apr 14, 2026
High [CVE-2026-32156] Windows UPnP Device Host Remote Code Execution Vulnerability
High7.4
Apr 14, 2026
High [CVE-2026-32154] Desktop Window Manager Elevation of Privilege Vulnerability
High7.8
Apr 14, 2026
High [CVE-2026-32090] Windows Speech Brokered Api Elevation of Privilege Vulnerability
High7.8
Apr 14, 2026
High [CVE-2026-32089] Windows Speech Brokered Api Elevation of Privilege Vulnerability
High7.8
Apr 14, 2026
High [CVE-2026-32087] Windows Function Discovery Service (fdwsd.dll) Elevation of Privilege Vulnerability
High7.0
Apr 14, 2026
High [CVE-2026-32071] Windows Local Security Authority Subsystem Service (LSASS) Denial of Service Vulnerability
High7.5
Apr 14, 2026
High [CVE-2026-27929] Windows LUA File Virtualization Filter Driver Elevation of Privilege Vulnerability
High7.0
Apr 14, 2026
High [CVE-2026-27927] Windows Projected File System Elevation of Privilege Vulnerability
High7.8
Apr 14, 2026
High [CVE-2026-27926] Windows Cloud Files Mini Filter Driver Elevation of Privilege Vulnerability
High7.0
Apr 14, 2026
High [CVE-2026-27924] Desktop Window Manager Elevation of Privilege Vulnerability
High7.8
Apr 14, 2026
High [CVE-2026-27921] Windows TDI Translation Driver (tdx.sys) Elevation of Privilege Vulnerability
High7.0
Apr 14, 2026
High [CVE-2026-27918] Windows Shell Elevation of Privilege Vulnerability
High7.8
Apr 14, 2026
High [CVE-2026-27917] Windows WFP NDIS Lightweight Filter Driver (wfplwfs.sys) Elevation of Privilege Vulnerability
High7.0
Apr 14, 2026
High [CVE-2026-27908] Windows TDI Translation Driver (tdx.sys) Elevation of Privilege Vulnerability
High7.0
Apr 14, 2026
High [CVE-2026-27907] Windows Storage Spaces Controller Elevation of Privilege Vulnerability
High7.8
Apr 14, 2026
High [CVE-2026-26183] Remote Access Management service/API (RPC server) Elevation of Privilege Vulnerability
High7.8
Apr 14, 2026
High [CVE-2026-26181] Microsoft Brokering File System Elevation of Privilege Vulnerability
High7.8
Apr 14, 2026
High [CVE-2026-26180] Windows Kernel Elevation of Privilege Vulnerability
High7.8
Apr 14, 2026
High [CVE-2026-26179] Windows Kernel Elevation of Privilege Vulnerability
High7.8
Apr 14, 2026
High [CVE-2026-26174] Windows Server Update Service (WSUS) Elevation of Privilege Vulnerability
High7.0
Apr 14, 2026
High [CVE-2026-26167] Windows Push Notifications Elevation of Privilege Vulnerability
High8.8
Apr 14, 2026
High [CVE-2026-26166] Windows Shell Elevation of Privilege Vulnerability
High7.0
Apr 14, 2026
High [CVE-2026-26165] Windows Shell Elevation of Privilege Vulnerability
High7.0
Apr 14, 2026
High [CVE-2026-26162] Windows OLE Elevation of Privilege Vulnerability
High7.8
Apr 14, 2026
High [CVE-2026-26161] Windows Sensor Data Service Elevation of Privilege Vulnerability
High7.8
Apr 14, 2026
High [CVE-2026-26154] Windows Server Update Service (WSUS) Tampering Vulnerability
High7.5
Apr 14, 2026
High [CVE-2026-26151] Remote Desktop Spoofing Vulnerability
High7.1
Apr 14, 2026
High [CVE-2026-25184] Applocker Filter Driver (applockerfltr.sys) Elevation of Privilege Vulnerability
High7.0
Apr 14, 2026
High [CVE-2026-20930] Windows Management Services Elevation of Privilege Vulnerability
High7.8
Apr 14, 2026
Medium [CVE-2026-32214] Universal Plug and Play (upnp.dll) Information Disclosure Vulnerability
Medium5.5
Apr 14, 2026
Medium [CVE-2026-33829] Windows Snipping Tool Spoofing Vulnerability
Medium4.3
Apr 14, 2026
Medium [CVE-2026-32201] Microsoft SharePoint Server Spoofing Vulnerability
Medium6.5ExploitedCISA KEV
Apr 14, 2026
Medium [CVE-2026-32176] SQL Server Elevation of Privilege Vulnerability
Medium6.7
Apr 14, 2026
Medium [CVE-2026-32151] Windows Shell Information Disclosure Vulnerability
Medium6.5
Apr 14, 2026
Medium [CVE-2026-32088] Windows Biometric Service Security Feature Bypass Vulnerability
Medium6.1
Apr 14, 2026
Medium [CVE-2026-32084] Windows Print Spooler Information Disclosure Vulnerability
Medium5.5
Apr 14, 2026
Medium [CVE-2026-32079] Web Account Manager Information Disclosure Vulnerability
Medium5.5
Apr 14, 2026
Medium [CVE-2026-32072] Active Directory Spoofing Vulnerability
Medium6.2
Apr 14, 2026
Medium [CVE-2026-27930] Windows GDI Information Disclosure Vulnerability
Medium5.5
Apr 14, 2026
Medium [CVE-2026-27925] Windows UPnP Device Host Information Disclosure Vulnerability
Medium6.5
Apr 14, 2026
Medium [CVE-2026-26169] Windows Kernel Memory Information Disclosure Vulnerability
Medium6.1
Apr 14, 2026
Medium [CVE-2026-20806] Windows COM Server Information Disclosure Vulnerability
Medium5.5
Apr 14, 2026
Medium [CVE-2026-20928] Windows Recovery Environment Security Feature Bypass Vulnerability
Medium4.6
Apr 14, 2026
Medium [CVE-2026-32212] Universal Plug and Play (upnp.dll) Information Disclosure Vulnerability
Medium5.5
Apr 14, 2026
Medium [CVE-2026-32223] Windows USB Printing Stack (usbprint.sys) Elevation of Privilege Vulnerability
Medium6.8
Apr 14, 2026
Medium [CVE-2026-32220] UEFI Secure Boot Security Feature Bypass Vulnerability
Medium4.4
Apr 14, 2026
Medium [CVE-2026-32218] Windows Kernel Information Disclosure Vulnerability
Medium5.5
Apr 14, 2026
Medium [CVE-2026-32217] Windows Kernel Information Disclosure Vulnerability
Medium5.5
Apr 14, 2026
Medium [CVE-2026-32215] Windows Kernel Information Disclosure Vulnerability
Medium5.5

Page 1 of 2 · 100 of 110

Get an email when Microsoft publishes the next one.

See Microsoft's last 90 days of advisories first. Then choose one product with live alerts free for life, or a free month of real-time alerts on everything with the severity, the fixed version and the vendor's link (card needed, then US$15/month; we email you before the first charge).

Alert me about Microsoft

Dates are each advisory's publication date at the source, in UTC; a record with no source date is filed under the day VulniPulse first saw it.