Windows 10 21h1 vulnerabilities

44 known vulnerabilities in Windows 10 21h1 from Microsoft. 34 are rated high or critical, and 44 have been exploited in real attacks. Each entry lists the affected versions and the release that fixes it, where the vendor has published one.

Latest first

• 5.4 Medium severity

  Microsoft Windows Mark of the Web (MOTW) Security Feature Bypass Exploited

  CVE-2023-36584Oct 10, 2023MicrosoftEPSS 3.25%

  Windows Mark of the Web Security Feature Bypass Vulnerability

• 5.4 Medium severity

  Microsoft Defender SmartScreen Security Feature Bypass Exploited

  CVE-2022-44698Dec 13, 2022MicrosoftEPSS 75%

  Windows SmartScreen Security Feature Bypass Vulnerability

• 8.8 High severity

  Microsoft Windows Scripting Languages Remote Code Execution Exploited

  CVE-2022-41128Nov 9, 2022MicrosoftEPSS 24.6%

  Windows Scripting Languages Remote Code Execution Vulnerability

• 7.8 High severity

  Microsoft Windows CNG Key Isolation Service Privilege Escalation Exploited

  CVE-2022-41125Nov 9, 2022MicrosoftEPSS 3.05%

  Windows CNG Key Isolation Service Elevation of Privilege Vulnerability

• 5.4 Medium severity

  Microsoft Windows Mark of the Web (MOTW) Security Feature Bypass Exploited

  CVE-2022-41091Nov 9, 2022MicrosoftEPSS 2.25%

  Windows Mark of the Web Security Feature Bypass Vulnerability

• 7.8 High severity

  Microsoft Windows Print Spooler Privilege Escalation Exploited

  CVE-2022-41073Nov 9, 2022MicrosoftEPSS 2.63%

  Windows Print Spooler Elevation of Privilege Vulnerability

• 5.4 Medium severity

  Microsoft Windows Mark of the Web (MOTW) Security Feature Bypass Exploited

  CVE-2022-41049Nov 9, 2022MicrosoftEPSS 3.27%

  Windows Mark of the Web Security Feature Bypass Vulnerability

• 7.8 High severity

  Microsoft Windows COM+ Event System Service Privilege Escalation Exploited

  CVE-2022-41033Oct 11, 2022MicrosoftEPSS 1.89%

  Windows COM+ Event System Service Elevation of Privilege Vulnerability

• 7.8 High severity

  Microsoft Windows Print Spooler Privilege Escalation Exploited

  CVE-2022-38028Oct 11, 2022MicrosoftEPSS 14.9%

  Windows Print Spooler Elevation of Privilege Vulnerability

• 7.8 High severity

  Microsoft Windows Common Log File System (CLFS) Driver Privilege Escalation Exploited

  CVE-2022-37969Sep 13, 2022MicrosoftEPSS 28.5%

  Windows Common Log File System Driver Elevation of Privilege Vulnerability

• 7.8 High severity

  Microsoft Windows Support Diagnostic Tool (MSDT) Remote Code Execution Exploited

  CVE-2022-34713Aug 9, 2022MicrosoftEPSS 67.8%

  Microsoft Windows Support Diagnostic Tool (MSDT) Remote Code Execution Vulnerability

• 7.2 High severity

  Microsoft Windows Client Server Runtime Subsystem (CSRSS) Privilege Escalation Exploited

  CVE-2022-22047Jul 12, 2022MicrosoftEPSS 18.3%

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

• 7.8 High severity

  Microsoft Windows Support Diagnostic Tool (MSDT) Remote Code Execution Exploited

  CVE-2022-30190Jun 1, 2022MicrosoftEPSS 98.5%

  A remote code execution vulnerability exists when MSDT is called using the URL protocol from a calling application such as Word. An attacker who successfully exploits this vulnerability can run arbitrary code with the privileges of the calling application. The

• 5.9 Medium severity

  Microsoft Windows LSA Spoofing Exploited

  CVE-2022-26925May 10, 2022MicrosoftEPSS 10.5%

  Windows LSA Spoofing Vulnerability

• 9.0 High severity

  Microsoft Active Directory Domain Services Privilege Escalation Exploited

  CVE-2022-26923May 10, 2022MicrosoftEPSS 83.5%

  Active Directory Domain Services Elevation of Privilege Vulnerability

• 4.4 Medium severity

  Microsoft Windows User Profile Service Privilege Escalation Exploited

  CVE-2022-26904Apr 15, 2022MicrosoftEPSS 16.9%

  Windows User Profile Service Elevation of Privilege Vulnerability

• 4.6 Medium severity

  Microsoft Windows CLFS Driver Privilege Escalation Exploited

  CVE-2022-24521Apr 15, 2022MicrosoftEPSS 7.13%

  Windows Common Log File System Driver Elevation of Privilege Vulnerability

• 7.2 High severity

  Microsoft Windows Print Spooler Privilege Escalation Exploited

  CVE-2022-22718Feb 9, 2022MicrosoftEPSS 18.5%

  Windows Print Spooler Elevation of Privilege Vulnerability

• 4.6 Medium severity

  Microsoft Windows Print Spooler Privilege Escalation Exploited

  CVE-2022-21999Feb 9, 2022MicrosoftEPSS 41%

  Windows Print Spooler Elevation of Privilege Vulnerability

• 9.3 High severity

  Microsoft Windows Runtime Remote Code Execution Exploited

  CVE-2022-21971Feb 9, 2022MicrosoftEPSS 53.9%

  Windows Runtime Remote Code Execution Vulnerability

• 6.9 Medium severity

  Microsoft Windows User Profile Service Privilege Escalation Exploited

  CVE-2022-21919Jan 11, 2022MicrosoftEPSS 2.57%

  Windows User Profile Service Elevation of Privilege Vulnerability

• 7.8 High severity

  Microsoft Win32k Privilege Escalation Exploited

  CVE-2022-21882Jan 11, 2022MicrosoftEPSS 59.2%

  Win32k Elevation of Privilege Vulnerability

• 7.8 High severity

  Microsoft Windows Privilege Escalation Exploited

  CVE-2021-43226Dec 15, 2021MicrosoftEPSS 3.28%

  Windows Common Log File System Driver Elevation of Privilege Vulnerability

• 7.8 High severity

  Microsoft Windows Installer Privilege Escalation Exploited

  CVE-2021-41379Nov 10, 2021MicrosoftEPSS 19.5%

  Windows Installer Elevation of Privilege Vulnerability

• 7.8 High severity

  Microsoft Win32k Privilege Escalation Exploited

  CVE-2021-41357Oct 13, 2021MicrosoftEPSS 1.52%

  Win32k Elevation of Privilege Vulnerability

• 7.8 High severity

  Microsoft Win32k Privilege Escalation Exploited

  CVE-2021-40450Oct 13, 2021MicrosoftEPSS 1.52%

  Win32k Elevation of Privilege Vulnerability

• 7.8 High severity

  Microsoft Windows Win32k Privilege Escalation Exploited

  CVE-2021-40449Oct 13, 2021MicrosoftEPSS 81.9%

  Win32k Elevation of Privilege Vulnerability

• 7.8 High severity

  Microsoft MSHTML Remote Code Execution Exploited

  CVE-2021-40444Sep 15, 2021MicrosoftEPSS 97.8%

  Microsoft is investigating reports of a remote code execution vulnerability in MSHTML that affects Microsoft Windows. Microsoft is aware of targeted attacks that attempt to exploit this vulnerability by using specially-crafted Microsoft Office documents. An at

• 7.8 High severity

  Microsoft Windows Common Log File System (CLFS) Driver Privilege Escalation Exploited

  CVE-2021-36955Sep 15, 2021MicrosoftEPSS 4.07%

  Windows Common Log File System Driver Elevation of Privilege Vulnerability

• 7.8 High severity

  Microsoft Windows Update Medic Service Privilege Escalation Exploited

  CVE-2021-36948Aug 12, 2021MicrosoftEPSS 23.3%

  Windows Update Medic Service Elevation of Privilege Vulnerability

• 7.8 High severity

  Microsoft Windows Event Tracing Privilege Escalation Exploited

  CVE-2021-34486Aug 12, 2021MicrosoftEPSS 9.33%

  Windows Event Tracing Elevation of Privilege Vulnerability

• 7.8 High severity

  Microsoft Windows User Profile Service Privilege Escalation Exploited

  CVE-2021-34484Aug 12, 2021MicrosoftEPSS 21.8%

  Windows User Profile Service Elevation of Privilege Vulnerability

• 7.8 High severity

  Microsoft Windows SAM Local Privilege Escalation Exploited

  CVE-2021-36934Jul 22, 2021MicrosoftEPSS 67.3%

  An elevation of privilege vulnerability exists because of overly permissive Access Control Lists (ACLs) on multiple system files, including the Security Accounts Manager (SAM) database. An attacker who successfully exploited this vulnerability could run arbitr

• 8.8 High severity

  Microsoft Windows Scripting Engine Memory Corruption Exploited

  CVE-2021-34448Jul 16, 2021MicrosoftEPSS 40.1%

  Scripting Engine Memory Corruption Vulnerability

• 7.8 High severity

  Microsoft Windows Kernel Privilege Escalation Exploited

  CVE-2021-33771Jul 14, 2021MicrosoftEPSS 10.2%

  Windows Kernel Elevation of Privilege Vulnerability

• 7.8 High severity

  Microsoft Windows Kernel Privilege Escalation Exploited

  CVE-2021-31979Jul 14, 2021MicrosoftEPSS 4.54%

  Windows Kernel Elevation of Privilege Vulnerability

• 8.8 High severity

  Microsoft Windows MSHTML Platform Remote Code Execution Exploited

  CVE-2021-33742Jun 8, 2021MicrosoftEPSS 59.4%

  Windows MSHTML Platform Remote Code Execution Vulnerability

• 7.8 High severity

  Microsoft Desktop Window Manager (DWM) Core Library Privilege Escalation Exploited

  CVE-2021-33739Jun 8, 2021MicrosoftEPSS 6.61%

  Microsoft DWM Core Library Elevation of Privilege Vulnerability

• 7.8 High severity

  Microsoft Windows NTFS Privilege Escalation Exploited

  CVE-2021-31956Jun 8, 2021MicrosoftEPSS 22.3%

  Windows NTFS Elevation of Privilege Vulnerability

• 5.5 Medium severity

  Microsoft Windows Kernel Information Disclosure Exploited

  CVE-2021-31955Jun 8, 2021MicrosoftEPSS 81.1%

  Windows Kernel Information Disclosure Vulnerability