Windows 11 21h2 Microsoft Windows 11 21h2

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By the Year

In 2023 there have been 493 vulnerabilities in Microsoft Windows 11 21h2 with an average score of 7.6 out of ten. Last year Windows 11 21h2 had 2 security vulnerabilities published. That is, 491 more vulnerabilities have already been reported in 2023 as compared to last year. However, the average CVE base score of the vulnerabilities in 2023 is greater by 0.40.

Year Vulnerabilities Average Score
2023 493 7.55
2022 2 7.15
2021 3 7.77
2020 0 0.00
2019 1 8.00
2018 0 0.00

It may take a day or so for new Windows 11 21h2 vulnerabilities to show up in the stats or in the list of recent security vulnerabilties. Additionally vulnerabilities may be tagged under a different product or component name.

Recent Microsoft Windows 11 21h2 Security Vulnerabilities

Windows SmartScreen Security Feature Bypass Vulnerability

CVE-2023-36025 8.8 - High - November 14, 2023

Windows SmartScreen Security Feature Bypass Vulnerability

Microsoft Speech Application Programming Interface (SAPI) Elevation of Privilege Vulnerability

CVE-2023-36719 7.8 - High - November 14, 2023

Microsoft Speech Application Programming Interface (SAPI) Elevation of Privilege Vulnerability

Windows Scripting Engine Memory Corruption Vulnerability

CVE-2023-36017 8.8 - High - November 14, 2023

Windows Scripting Engine Memory Corruption Vulnerability

Memory Corruption

Windows DWM Core Library Elevation of Privilege Vulnerability

CVE-2023-36033 7.8 - High - November 14, 2023

Windows DWM Core Library Elevation of Privilege Vulnerability

Windows Cloud Files Mini Filter Driver Elevation of Privilege Vulnerability

CVE-2023-36036 7.8 - High - November 14, 2023

Windows Cloud Files Mini Filter Driver Elevation of Privilege Vulnerability

Windows Pragmatic General Multicast (PGM) Remote Code Execution Vulnerability

CVE-2023-36397 9.8 - Critical - November 14, 2023

Windows Pragmatic General Multicast (PGM) Remote Code Execution Vulnerability

Windows NTFS Information Disclosure Vulnerability

CVE-2023-36398 6.5 - Medium - November 14, 2023

Windows NTFS Information Disclosure Vulnerability

Windows Storage Elevation of Privilege Vulnerability

CVE-2023-36399 7.1 - High - November 14, 2023

Windows Storage Elevation of Privilege Vulnerability

Windows HMAC Key Derivation Elevation of Privilege Vulnerability

CVE-2023-36400 8.8 - High - November 14, 2023

Windows HMAC Key Derivation Elevation of Privilege Vulnerability

Microsoft Remote Registry Service Remote Code Execution Vulnerability

CVE-2023-36401 7.2 - High - November 14, 2023

Microsoft Remote Registry Service Remote Code Execution Vulnerability

Microsoft WDAC OLE DB provider for SQL Server Remote Code Execution Vulnerability

CVE-2023-36402 8.8 - High - November 14, 2023

Microsoft WDAC OLE DB provider for SQL Server Remote Code Execution Vulnerability

Windows Kernel Elevation of Privilege Vulnerability

CVE-2023-36403 7 - High - November 14, 2023

Windows Kernel Elevation of Privilege Vulnerability

Windows Kernel Information Disclosure Vulnerability

CVE-2023-36404 5.5 - Medium - November 14, 2023

Windows Kernel Information Disclosure Vulnerability

Windows Kernel Elevation of Privilege Vulnerability

CVE-2023-36405 7 - High - November 14, 2023

Windows Kernel Elevation of Privilege Vulnerability

Windows Hyper-V Information Disclosure Vulnerability

CVE-2023-36406 5.5 - Medium - November 14, 2023

Windows Hyper-V Information Disclosure Vulnerability

Windows Hyper-V Elevation of Privilege Vulnerability

CVE-2023-36407 7.8 - High - November 14, 2023

Windows Hyper-V Elevation of Privilege Vulnerability

Windows Hyper-V Elevation of Privilege Vulnerability

CVE-2023-36408 7.8 - High - November 14, 2023

Windows Hyper-V Elevation of Privilege Vulnerability

Microsoft Remote Registry Service Remote Code Execution Vulnerability

CVE-2023-36423 8.8 - High - November 14, 2023

Microsoft Remote Registry Service Remote Code Execution Vulnerability

Windows Common Log File System Driver Elevation of Privilege Vulnerability

CVE-2023-36424 7.8 - High - November 14, 2023

Windows Common Log File System Driver Elevation of Privilege Vulnerability

Windows Distributed File System (DFS) Remote Code Execution Vulnerability

CVE-2023-36425 8 - High - November 14, 2023

Windows Distributed File System (DFS) Remote Code Execution Vulnerability

Windows Hyper-V Elevation of Privilege Vulnerability

CVE-2023-36427 7 - High - November 14, 2023

Windows Hyper-V Elevation of Privilege Vulnerability

Microsoft Local Security Authority Subsystem Service Information Disclosure Vulnerability

CVE-2023-36428 5.5 - Medium - November 14, 2023

Microsoft Local Security Authority Subsystem Service Information Disclosure Vulnerability

Windows Installer Elevation of Privilege Vulnerability

CVE-2023-36705 7.8 - High - November 14, 2023

Windows Installer Elevation of Privilege Vulnerability

Microsoft Protected Extensible Authentication Protocol (PEAP) Remote Code Execution Vulnerability

CVE-2023-36028 9.8 - Critical - November 14, 2023

Microsoft Protected Extensible Authentication Protocol (PEAP) Remote Code Execution Vulnerability

Windows Authentication Denial of Service Vulnerability

CVE-2023-36046 7.1 - High - November 14, 2023

Windows Authentication Denial of Service Vulnerability

Windows Authentication Elevation of Privilege Vulnerability

CVE-2023-36047 7.8 - High - November 14, 2023

Windows Authentication Elevation of Privilege Vulnerability

Windows User Interface Application Core Remote Code Execution Vulnerability

CVE-2023-36393 7.8 - High - November 14, 2023

Windows User Interface Application Core Remote Code Execution Vulnerability

Windows Search Service Elevation of Privilege Vulnerability

CVE-2023-36394 7 - High - November 14, 2023

Windows Search Service Elevation of Privilege Vulnerability

Win32k Elevation of Privilege Vulnerability

CVE-2023-36732 7.8 - High - October 10, 2023

Win32k Elevation of Privilege Vulnerability

Microsoft Message Queuing Remote Code Execution Vulnerability

CVE-2023-36571 7.3 - High - October 10, 2023

Microsoft Message Queuing Remote Code Execution Vulnerability

Microsoft Message Queuing Remote Code Execution Vulnerability

CVE-2023-36570 7.3 - High - October 10, 2023

Microsoft Message Queuing Remote Code Execution Vulnerability

Microsoft QUIC Denial of Service Vulnerability

CVE-2023-36435 7.5 - High - October 10, 2023

Microsoft QUIC Denial of Service Vulnerability

Windows IIS Server Elevation of Privilege Vulnerability

CVE-2023-36434 9.8 - Critical - October 10, 2023

Windows IIS Server Elevation of Privilege Vulnerability

Microsoft Message Queuing Denial of Service Vulnerability

CVE-2023-36431 7.5 - High - October 10, 2023

Microsoft Message Queuing Denial of Service Vulnerability

Microsoft Message Queuing Remote Code Execution Vulnerability

CVE-2023-35349 9.8 - Critical - October 10, 2023

Microsoft Message Queuing Remote Code Execution Vulnerability

Layer 2 Tunneling Protocol Remote Code Execution Vulnerability

CVE-2023-41774 8.1 - High - October 10, 2023

Layer 2 Tunneling Protocol Remote Code Execution Vulnerability

Race Condition

Layer 2 Tunneling Protocol Remote Code Execution Vulnerability

CVE-2023-41773 8.1 - High - October 10, 2023

Layer 2 Tunneling Protocol Remote Code Execution Vulnerability

Race Condition

Win32k Elevation of Privilege Vulnerability

CVE-2023-41772 7.8 - High - October 10, 2023

Win32k Elevation of Privilege Vulnerability

Layer 2 Tunneling Protocol Remote Code Execution Vulnerability

CVE-2023-41771 8.1 - High - October 10, 2023

Layer 2 Tunneling Protocol Remote Code Execution Vulnerability

Race Condition

Layer 2 Tunneling Protocol Remote Code Execution Vulnerability

CVE-2023-41770 8.1 - High - October 10, 2023

Layer 2 Tunneling Protocol Remote Code Execution Vulnerability

Race Condition

Layer 2 Tunneling Protocol Remote Code Execution Vulnerability

CVE-2023-41769 8.1 - High - October 10, 2023

Layer 2 Tunneling Protocol Remote Code Execution Vulnerability

Race Condition

Layer 2 Tunneling Protocol Remote Code Execution Vulnerability

CVE-2023-41768 8.1 - High - October 10, 2023

Layer 2 Tunneling Protocol Remote Code Execution Vulnerability

Race Condition

Layer 2 Tunneling Protocol Remote Code Execution Vulnerability

CVE-2023-41767 8.1 - High - October 10, 2023

Layer 2 Tunneling Protocol Remote Code Execution Vulnerability

Race Condition

Windows Client Server Run-time Subsystem (CSRSS) Elevation of Privilege Vulnerability

CVE-2023-41766 7.8 - High - October 10, 2023

Windows Client Server Run-time Subsystem (CSRSS) Elevation of Privilege Vulnerability

Layer 2 Tunneling Protocol Remote Code Execution Vulnerability

CVE-2023-41765 8.1 - High - October 10, 2023

Layer 2 Tunneling Protocol Remote Code Execution Vulnerability

Race Condition

Layer 2 Tunneling Protocol Remote Code Execution Vulnerability

CVE-2023-38166 8.1 - High - October 10, 2023

Layer 2 Tunneling Protocol Remote Code Execution Vulnerability

Race Condition

Windows Graphics Component Elevation of Privilege Vulnerability

CVE-2023-38159 7 - High - October 10, 2023

Windows Graphics Component Elevation of Privilege Vulnerability

Race Condition

Windows Runtime Remote Code Execution Vulnerability

CVE-2023-36902 7 - High - October 10, 2023

Windows Runtime Remote Code Execution Vulnerability

Race Condition

Win32k Elevation of Privilege Vulnerability

CVE-2023-36776 7 - High - October 10, 2023

Win32k Elevation of Privilege Vulnerability

Race Condition

Microsoft DirectMusic Remote Code Execution Vulnerability

CVE-2023-36702 7.8 - High - October 10, 2023

Microsoft DirectMusic Remote Code Execution Vulnerability

Microsoft Resilient File System (ReFS) Elevation of Privilege Vulnerability

CVE-2023-36701 7.8 - High - October 10, 2023

Microsoft Resilient File System (ReFS) Elevation of Privilege Vulnerability

Windows Kernel Security Feature Bypass Vulnerability

CVE-2023-36698 4.4 - Medium - October 10, 2023

Windows Kernel Security Feature Bypass Vulnerability

Microsoft Message Queuing Denial of Service Vulnerability

CVE-2023-36579 7.5 - High - October 10, 2023

Microsoft Message Queuing Denial of Service Vulnerability

Microsoft Message Queuing Remote Code Execution Vulnerability

CVE-2023-36578 7.3 - High - October 10, 2023

Microsoft Message Queuing Remote Code Execution Vulnerability

Microsoft WDAC OLE DB provider for SQL Server Remote Code Execution Vulnerability

CVE-2023-36577 8.8 - High - October 10, 2023

Microsoft WDAC OLE DB provider for SQL Server Remote Code Execution Vulnerability

Windows Kernel Information Disclosure Vulnerability

CVE-2023-36576 5.5 - Medium - October 10, 2023

Windows Kernel Information Disclosure Vulnerability

Microsoft Message Queuing Remote Code Execution Vulnerability

CVE-2023-36575 7.3 - High - October 10, 2023

Microsoft Message Queuing Remote Code Execution Vulnerability

Microsoft Message Queuing Remote Code Execution Vulnerability

CVE-2023-36574 7.3 - High - October 10, 2023

Microsoft Message Queuing Remote Code Execution Vulnerability

Microsoft Message Queuing Remote Code Execution Vulnerability

CVE-2023-36573 7.3 - High - October 10, 2023

Microsoft Message Queuing Remote Code Execution Vulnerability

Microsoft Message Queuing Remote Code Execution Vulnerability

CVE-2023-36572 7.3 - High - October 10, 2023

Microsoft Message Queuing Remote Code Execution Vulnerability

Windows Deployment Services Information Disclosure Vulnerability

CVE-2023-36567 7.5 - High - October 10, 2023

Windows Deployment Services Information Disclosure Vulnerability

Windows MSHTML Platform Remote Code Execution Vulnerability

CVE-2023-36436 7.8 - High - October 10, 2023

Windows MSHTML Platform Remote Code Execution Vulnerability

Win32k Elevation of Privilege Vulnerability

CVE-2023-36743 7.8 - High - October 10, 2023

Win32k Elevation of Privilege Vulnerability

Win32k Elevation of Privilege Vulnerability

CVE-2023-36731 7.8 - High - October 10, 2023

Win32k Elevation of Privilege Vulnerability

Named Pipe File System Elevation of Privilege Vulnerability

CVE-2023-36729 7.8 - High - October 10, 2023

Named Pipe File System Elevation of Privilege Vulnerability

Windows Kernel Elevation of Privilege Vulnerability

CVE-2023-36725 7.8 - High - October 10, 2023

Windows Kernel Elevation of Privilege Vulnerability

Microsoft AllJoyn API Denial of Service Vulnerability

CVE-2023-36709 7.5 - High - October 10, 2023

Microsoft AllJoyn API Denial of Service Vulnerability

Windows Media Foundation Core Remote Code Execution Vulnerability

CVE-2023-36710 7.8 - High - October 10, 2023

Windows Media Foundation Core Remote Code Execution Vulnerability

Windows Runtime C++ Template Library Elevation of Privilege Vulnerability

CVE-2023-36711 7.8 - High - October 10, 2023

Windows Runtime C++ Template Library Elevation of Privilege Vulnerability

Windows Kernel Elevation of Privilege Vulnerability

CVE-2023-36712 7.8 - High - October 10, 2023

Windows Kernel Elevation of Privilege Vulnerability

Windows Common Log File System Driver Information Disclosure Vulnerability

CVE-2023-36713 5.5 - Medium - October 10, 2023

Windows Common Log File System Driver Information Disclosure Vulnerability

Windows Virtual Trusted Platform Module Denial of Service Vulnerability

CVE-2023-36717 6.5 - Medium - October 10, 2023

Windows Virtual Trusted Platform Module Denial of Service Vulnerability

Microsoft Virtual Trusted Platform Module Remote Code Execution Vulnerability

CVE-2023-36718 7.8 - High - October 10, 2023

Microsoft Virtual Trusted Platform Module Remote Code Execution Vulnerability

Windows Mixed Reality Developer Tools Denial of Service Vulnerability

CVE-2023-36720 7.5 - High - October 10, 2023

Windows Mixed Reality Developer Tools Denial of Service Vulnerability

Windows Error Reporting Service Elevation of Privilege Vulnerability

CVE-2023-36721 7 - High - October 10, 2023

Windows Error Reporting Service Elevation of Privilege Vulnerability

Active Directory Domain Services Information Disclosure Vulnerability

CVE-2023-36722 4.4 - Medium - October 10, 2023

Active Directory Domain Services Information Disclosure Vulnerability

Windows Container Manager Service Elevation of Privilege Vulnerability

CVE-2023-36723 7.8 - High - October 10, 2023

Windows Container Manager Service Elevation of Privilege Vulnerability

Windows TCP/IP Information Disclosure Vulnerability

CVE-2023-36438 7.5 - High - October 10, 2023

Windows TCP/IP Information Disclosure Vulnerability

PrintHTML API Remote Code Execution Vulnerability

CVE-2023-36557 7.8 - High - October 10, 2023

PrintHTML API Remote Code Execution Vulnerability

Microsoft WordPad Information Disclosure Vulnerability

CVE-2023-36563 6.5 - Medium - October 10, 2023

Microsoft WordPad Information Disclosure Vulnerability

Windows Search Security Feature Bypass Vulnerability

CVE-2023-36564 6.5 - Medium - October 10, 2023

Windows Search Security Feature Bypass Vulnerability

Microsoft Message Queuing Denial of Service Vulnerability

CVE-2023-36581 7.5 - High - October 10, 2023

Microsoft Message Queuing Denial of Service Vulnerability

Microsoft Message Queuing Remote Code Execution Vulnerability

CVE-2023-36582 7.3 - High - October 10, 2023

Microsoft Message Queuing Remote Code Execution Vulnerability

Microsoft Message Queuing Remote Code Execution Vulnerability

CVE-2023-36583 7.3 - High - October 10, 2023

Microsoft Message Queuing Remote Code Execution Vulnerability

Active Template Library Denial of Service Vulnerability

CVE-2023-36585 7.5 - High - October 10, 2023

Active Template Library Denial of Service Vulnerability

Windows Mark of the Web Security Feature Bypass Vulnerability

CVE-2023-36584 5.4 - Medium - October 10, 2023

Windows Mark of the Web Security Feature Bypass Vulnerability

Windows Internet Key Exchange (IKE) Extension Elevation of Privilege Vulnerability

CVE-2023-36726 7.8 - High - October 10, 2023

Windows Internet Key Exchange (IKE) Extension Elevation of Privilege Vulnerability

Windows Power Management Service Information Disclosure Vulnerability

CVE-2023-36724 5.5 - Medium - October 10, 2023

Windows Power Management Service Information Disclosure Vulnerability

Microsoft Message Queuing Remote Code Execution Vulnerability

CVE-2023-36697 8 - High - October 10, 2023

Microsoft Message Queuing Remote Code Execution Vulnerability

Microsoft Message Queuing Denial of Service Vulnerability

CVE-2023-36606 7.5 - High - October 10, 2023

Microsoft Message Queuing Denial of Service Vulnerability

Windows Named Pipe Filesystem Elevation of Privilege Vulnerability

CVE-2023-36605 7.8 - High - October 10, 2023

Windows Named Pipe Filesystem Elevation of Privilege Vulnerability

Windows TCP/IP Denial of Service Vulnerability

CVE-2023-36603 7.5 - High - October 10, 2023

Windows TCP/IP Denial of Service Vulnerability

Windows TCP/IP Denial of Service Vulnerability

CVE-2023-36602 7.5 - High - October 10, 2023

Windows TCP/IP Denial of Service Vulnerability

Microsoft Message Queuing Remote Code Execution Vulnerability

CVE-2023-36592 7.3 - High - October 10, 2023

Microsoft Message Queuing Remote Code Execution Vulnerability

Microsoft Message Queuing Remote Code Execution Vulnerability

CVE-2023-36589 7.3 - High - October 10, 2023

Microsoft Message Queuing Remote Code Execution Vulnerability

Microsoft Message Queuing Remote Code Execution Vulnerability

CVE-2023-36590 7.3 - High - October 10, 2023

Microsoft Message Queuing Remote Code Execution Vulnerability

Microsoft WDAC ODBC Driver Remote Code Execution Vulnerability

CVE-2023-36598 7.8 - High - October 10, 2023

Microsoft WDAC ODBC Driver Remote Code Execution Vulnerability

Microsoft Message Queuing Remote Code Execution Vulnerability

CVE-2023-36591 7.3 - High - October 10, 2023

Microsoft Message Queuing Remote Code Execution Vulnerability

Windows Graphics Component Elevation of Privilege Vulnerability

CVE-2023-36594 7.8 - High - October 10, 2023

Windows Graphics Component Elevation of Privilege Vulnerability

Remote Procedure Call Information Disclosure Vulnerability

CVE-2023-36596 7.5 - High - October 10, 2023

Remote Procedure Call Information Disclosure Vulnerability

Exposure of Resource to Wrong Sphere

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