Advisories · Technology
Microsoft Windows 11 version 21H2.
Every CVE that names Microsoft Windows 11 version 21H2 among its affected products, newest first. Vendors and products are as the CNA wrote them; check the affected versions on each record.
- CVSS 8.8 High
Windows Fax Service Remote Code Execution Vulnerability
- Microsoft Windows 10 Version 1809
- Microsoft Windows Server 2019
- Memory corruption
- CVSS 6.5 Medium
Windows Layer-2 Bridge Network Driver Denial of Service Vulnerability
- Microsoft Windows 10 Version 1809
- Microsoft Windows Server 2019
- Memory corruption
- CVSS 7.5 High
Microsoft WS-Discovery Denial of Service Vulnerability
- Microsoft Windows 10 Version 1809
- Microsoft Windows Server 2019
- CWE-166
- CVSS 7.8 High
Windows Graphics Component Elevation of Privilege Vulnerability
- Microsoft Windows 10 Version 1809
- Microsoft Windows Server 2019
- Memory corruption
- CVSS 7.8 HighCritical · KEVKEV
Windows Hyper-V Elevation of Privilege Vulnerability
- Microsoft Windows Server 2022
- Microsoft Windows 11 version 21H2
- Memory corruption
- CVSS 7.5 High
Windows TCP/IP Information Disclosure Vulnerability
- Microsoft Windows 10 Version 1809
- Microsoft Windows Server 2019
- Memory corruption
- CVSS 7.8 High
Windows Kernel-Mode Driver Elevation of Privilege Vulnerability
- Microsoft Windows 10 Version 1809
- Microsoft Windows Server 2019
- Memory corruption
- CVSS 7.5 High
DCOM Remote Cross-Session Activation Elevation of Privilege Vulnerability
- Microsoft Windows 10 Version 1809
- Microsoft Windows Server 2019
- Broken access control
- CVSS 8.8 HighCritical · CVSS 7+ and EPSS
Windows Imaging Component Remote Code Execution Vulnerability
- Microsoft Windows 10 Version 1809
- Microsoft Windows Server 2019
- Memory corruption
- CVSS 7.8 High
Win32k Elevation of Privilege Vulnerability
- Microsoft Windows Server 2022
- Microsoft Windows 11 version 21H2
- Memory corruption
- CVSS 5.5 Medium
Microsoft Windows Codecs Library Information Disclosure Vulnerability
- Microsoft Windows 10 Version 1809
- Microsoft Windows Server 2019
- Memory corruption
- CVSS 5.5 Medium
Microsoft Windows Codecs Library Information Disclosure Vulnerability
- Microsoft Windows 10 Version 1809
- Microsoft Windows Server 2019
- CWE-20
- CVSS 7.8 HighCritical · CVSS 7+ and EPSS
Kernel Streaming WOW Thunk Service Driver Elevation of Privilege Vulnerability
- Microsoft Windows 10 Version 1809
- Microsoft Windows Server 2019
- Memory corruption
- CVSS 7.8 High
Windows Graphics Component Remote Code Execution Vulnerability
- Microsoft Windows 10 Version 1809
- Microsoft Windows Server 2019
- Memory corruption
- CVSS 7.8 High
PowerShell Elevation of Privilege Vulnerability
- Microsoft Windows 10 Version 1809
- Microsoft Windows Server 2019
- CWE-20
- CVSS 5.5 Medium
Windows Kernel Information Disclosure Vulnerability
- Microsoft Windows 10 Version 1809
- Microsoft Windows Server 2019
- Information disclosure
- CVSS 7.8 High
Windows Filtering Platform Elevation of Privilege Vulnerability
- Microsoft Windows 10 Version 1809
- Microsoft Windows Server 2019
- Memory corruption
- CVSS 7.2 High
Microsoft Windows Performance Data Helper Library Remote Code Execution Vulnerability
- Microsoft Windows 10 Version 1809
- Microsoft Windows Server 2019
- Memory corruption
- CVSS 7.0 High
Windows Image Acquisition Elevation of Privilege Vulnerability
- Microsoft Windows 10 Version 1809
- Microsoft Windows Server 2019
- Path traversal
- CVSS 6.7 Medium
Microsoft Windows Server Backup Elevation of Privilege Vulnerability
- Microsoft Windows 10 Version 1809
- Microsoft Windows Server 2019
- Path traversal
- CVSS 8.0 High
Secure Boot Security Feature Bypass Vulnerability
- Microsoft Windows 10 Version 1809
- Microsoft Windows Server 2019
- Memory corruption
- CVSS 8.0 High
Secure Boot Security Feature Bypass Vulnerability
- Microsoft Windows 10 Version 1809
- Microsoft Windows Server 2019
- Memory corruption
- CVSS 8.0 High
Secure Boot Security Feature Bypass Vulnerability
- Microsoft Windows 10 Version 1809
- Microsoft Windows Server 2019
- Memory corruption
- CVSS 8.0 High
Secure Boot Security Feature Bypass Vulnerability
- Microsoft Windows 10 Version 1809
- Microsoft Windows Server 2019
- Memory corruption
- CVSS 8.0 High
Secure Boot Security Feature Bypass Vulnerability
- Microsoft Windows 10 Version 1809
- Microsoft Windows Server 2019
- Memory corruption
- CVSS 8.0 High
Secure Boot Security Feature Bypass Vulnerability
- Microsoft Windows 10 Version 1809
- Microsoft Windows Server 2019
- Memory corruption
- CVSS 5.3 Medium
Windows iSCSI Service Denial of Service Vulnerability
- Microsoft Windows 10 Version 1809
- Microsoft Windows Server 2019
- Denial of service
- CVSS 7.5 High
Windows Cryptographic Services Security Feature Bypass Vulnerability
- Microsoft Windows Server 2025 (Server Core installation)
- Microsoft Windows 11 Version 24H2
- Weak cryptography or TLS
- CVSS 7.1 HighCritical · CVSS 7+ and EPSS
Windows NTLM Spoofing Vulnerability
- Microsoft Windows 10 Version 1809
- Microsoft Windows Server 2019
- Information disclosure
- CVSS 8.8 High
Secure Boot Security Feature Bypass Vulnerability
- Microsoft Windows 10 Version 1809
- Microsoft Windows Server 2019
- Memory corruption
- CVSS 7.0 High
Windows Perception Service Elevation of Privilege Vulnerability
- Microsoft Windows 10 Version 1809
- Microsoft Windows 10 Version 21H2
- Race condition
- CVSS 7.0 High
Windows Kernel Elevation of Privilege Vulnerability
- Microsoft Windows 10 Version 1507
- Microsoft Windows 10 Version 1607
- Race condition
- CVSS 8.8 High
Microsoft Speech Application Programming Interface (SAPI) Remote Code Execution Vulnerability
- Microsoft Windows 10 Version 1507
- Microsoft Windows 10 Version 1607
- Memory corruption
- CVSS 5.5 Medium
Windows Cryptographic Services Information Disclosure Vulnerability
- Microsoft Windows 10 Version 1809
- Microsoft Windows 10 Version 21H2
- Information disclosure
- CVSS 7.8 High
Windows Routing and Remote Access Service (RRAS) Remote Code Execution Vulnerability
- Microsoft Windows 10 Version 1507
- Microsoft Windows 10 Version 1607
- Memory corruption
- CVSS 7.8 High
Windows Routing and Remote Access Service (RRAS) Remote Code Execution Vulnerability
- Microsoft Windows 10 Version 1507
- Microsoft Windows 10 Version 1607
- Memory corruption
- CVSS 7.3 High
Windows Storage Elevation of Privilege Vulnerability
- Microsoft Windows 10 Version 1507
- Microsoft Windows 10 Version 1607
- Path traversal
- CVSS 7.8 High
Win32k Elevation of Privilege Vulnerability
- Microsoft Windows 10 Version 1507
- Microsoft Windows 10 Version 1607
- Memory corruption
- CVSS 7.0 High
Microsoft Streaming Service Elevation of Privilege Vulnerability
- Microsoft Windows 10 Version 1507
- Microsoft Windows 10 Version 1607
- Memory corruption
- CVSS 7.8 High
Microsoft Streaming Service Elevation of Privilege Vulnerability
- Microsoft Windows 10 Version 1809
- Microsoft Windows 10 Version 21H2
- Memory corruption
- CVSS 7.0 HighCritical · KEV, CVSS 7+ and EPSSKEV · ransomware
Windows Kernel Elevation of Privilege Vulnerability
- Microsoft Windows 10 Version 1507
- Microsoft Windows 10 Version 1607
- Race condition
- CVSS 7.8 High
Win32k Elevation of Privilege Vulnerability
- Microsoft Windows 10 Version 1507
- Microsoft Windows 10 Version 1607
- CWE-20
- CVSS 7.8 High
Windows Win32 Kernel Subsystem Elevation of Privilege Vulnerability
- Microsoft Windows 10 Version 1507
- Microsoft Windows 10 Version 1607
- Memory corruption
- CVSS 7.8 HighCritical · CVSS 7+ and EPSS
Windows Cloud Files Mini Filter Driver Elevation of Privilege Vulnerability
- Microsoft Windows 10 Version 1809
- Microsoft Windows 10 Version 21H2
- Memory corruption
- CVSS 7.0 High
Windows Kernel-Mode Driver Elevation of Privilege Vulnerability
- Microsoft Windows 10 Version 1507
- Microsoft Windows 10 Version 1607
- Race condition
- CVSS 8.8 High
Windows Kernel Elevation of Privilege Vulnerability
- Microsoft Windows 10 Version 1507
- Microsoft Windows 10 Version 1607
- Memory corruption
- CVSS 5.5 Medium
Winlogon Elevation of Privilege Vulnerability
- Microsoft Windows 10 Version 1507
- Microsoft Windows 10 Version 1607
- Memory corruption
- CVSS 5.5 Medium
Winlogon Elevation of Privilege Vulnerability
- Microsoft Windows 10 Version 1507
- Microsoft Windows 10 Version 1607
- Memory corruption
- CVSS 5.5 Medium
Windows Themes Denial of Service Vulnerability
- Microsoft Windows 10 Version 1507
- Microsoft Windows 10 Version 1607
- Path traversal
- CVSS 6.7 Medium
Windows Distributed File System (DFS) Remote Code Execution Vulnerability
- Microsoft Windows 10 Version 1507
- Microsoft Windows 10 Version 1607
- CWE-641
- CVSS 7.8 HighCritical · KEV, CVSS 7+ and EPSSKEV
Windows Kernel-Mode Driver Elevation of Privilege Vulnerability
- Microsoft Windows 10 Version 1507
- Microsoft Windows 10 Version 1607
- Memory corruption
- CVSS 7.8 High
Win32k Elevation of Privilege Vulnerability
- Microsoft Windows 10 Version 1507
- Microsoft Windows 10 Version 1607
- Memory corruption
- CVSS 9.8 CriticalCritical · CVSS 9+, CVSS 7+ and EPSS
Microsoft Message Queuing (MSMQ) Remote Code Execution Vulnerability
- Microsoft Windows 10 Version 1507
- Microsoft Windows 10 Version 1607
- Memory corruption
- CVSS 8.8 High
Windows Wi-Fi Driver Remote Code Execution Vulnerability
- Microsoft Windows 10 Version 1507
- Microsoft Windows 10 Version 1607
- CWE-20
- CVSS 8.0 High
Windows OLE Remote Code Execution Vulnerability
- Microsoft Windows 10 Version 1507
- Microsoft Windows 10 Version 1607
- Memory corruption
- CVSS 6.8 Medium
Windows Container Manager Service Elevation of Privilege Vulnerability
- Microsoft Windows 10 Version 1607
- Microsoft Windows 10 Version 1809
- Path traversal
- CVSS 4.7 Medium
Windows Remote Access Connection Manager Information Disclosure Vulnerability
- Microsoft Windows 10 Version 1507
- Microsoft Windows 10 Version 1607
- CWE-126
- CVSS 7.8 HighCritical · KEVKEV · ransomware
Windows DWM Core Library Elevation of Privilege Vulnerability
- Microsoft Windows 10 Version 1809
- Microsoft Windows Server 2019
- Memory corruption
- CVSS 7.8 High
Windows Win32 Kernel Subsystem Elevation of Privilege Vulnerability
- Microsoft Windows 10 Version 1809
- Microsoft Windows Server 2019
- Memory corruption
- CVSS 8.8 HighCritical · KEVKEV
Windows MSHTML Platform Security Feature Bypass Vulnerability
- Microsoft Windows 10 Version 1809
- Microsoft Windows Server 2019
- CWE-20