Microsoft Windows 10 21H2 vulnerabilities
1,584 known vulnerabilities affecting microsoft/windows_10_21h2.
Total CVEs
1,584
CISA KEV
86
actively exploited
Public exploits
31
Exploited in wild
55
Severity breakdown
CRITICAL39HIGH1118MEDIUM421LOW6
Vulnerabilities
Page 33 of 80
CVE-2025-21254MEDIUMCVSS 6.5fixed in 10.0.19044.54872025-02-11
CVE-2025-21254 [MEDIUM] CWE-125 CVE-2025-21254: Internet Connection Sharing (ICS) Denial of Service Vulnerability
Internet Connection Sharing (ICS) Denial of Service Vulnerability
nvd
CVE-2025-21352MEDIUMCVSS 6.5fixed in 10.0.19044.54872025-02-11
CVE-2025-21352 [MEDIUM] CWE-400 CVE-2025-21352: Internet Connection Sharing (ICS) Denial of Service Vulnerability
Internet Connection Sharing (ICS) Denial of Service Vulnerability
nvd
CVE-2025-21325HIGHCVSS 7.8fixed in 10.0.19044.53712025-01-17
CVE-2025-21325 [HIGH] CWE-732 CVE-2025-21325: Windows Secure Kernel Mode Elevation of Privilege Vulnerability
Windows Secure Kernel Mode Elevation of Privilege Vulnerability
nvd
CVE-2025-21307CRITICALCVSS 9.8fixed in 10.0.19044.53712025-01-14
CVE-2025-21307 [CRITICAL] CWE-416 CVE-2025-21307: Windows Reliable Multicast Transport Driver (RMCAST) Remote Code Execution Vulnerability
Windows Reliable Multicast Transport Driver (RMCAST) Remote Code Execution Vulnerability
nvd
CVE-2025-21291HIGHCVSS 8.8fixed in 10.0.19044.53712025-01-14
CVE-2025-21291 [HIGH] CWE-415 CVE-2025-21291: Windows Direct Show Remote Code Execution Vulnerability
Windows Direct Show Remote Code Execution Vulnerability
nvd
CVE-2025-21239HIGHCVSS 8.8fixed in 10.0.19044.53712025-01-14
CVE-2025-21239 [HIGH] CWE-122 CVE-2025-21239: Windows Telephony Service Remote Code Execution Vulnerability
Windows Telephony Service Remote Code Execution Vulnerability
nvd
CVE-2025-21293HIGHCVSS 8.8PoCfixed in 10.0.19044.53712025-01-14
CVE-2025-21293 [HIGH] CWE-284 CVE-2025-21293: Active Directory Domain Services Elevation of Privilege Vulnerability
Active Directory Domain Services Elevation of Privilege Vulnerability
nvd
CVE-2025-21378HIGHCVSS 7.8fixed in 10.0.19044.53712025-01-14
CVE-2025-21378 [HIGH] CWE-122 CVE-2025-21378: Windows CSC Service Elevation of Privilege Vulnerability
Windows CSC Service Elevation of Privilege Vulnerability
nvd
CVE-2025-21300HIGHCVSS 7.5fixed in 10.0.19044.53712025-01-14
CVE-2025-21300 [HIGH] CWE-400 CVE-2025-21300: Windows Universal Plug and Play (UPnP) Device Host Denial of Service Vulnerability
Windows Universal Plug and Play (UPnP) Device Host Denial of Service Vulnerability
nvd
CVE-2025-21409HIGHCVSS 8.8fixed in 10.0.19044.53712025-01-14
CVE-2025-21409 [HIGH] CWE-122 CVE-2025-21409: Windows Telephony Service Remote Code Execution Vulnerability
Windows Telephony Service Remote Code Execution Vulnerability
nvd
CVE-2025-21234HIGHCVSS 7.8fixed in 10.0.19044.53712025-01-14
CVE-2025-21234 [HIGH] CWE-20 CVE-2025-21234: Windows PrintWorkflowUserSvc Elevation of Privilege Vulnerability
Windows PrintWorkflowUserSvc Elevation of Privilege Vulnerability
nvd
CVE-2025-21339HIGHCVSS 8.8fixed in 10.0.19044.53712025-01-14
CVE-2025-21339 [HIGH] CWE-122 CVE-2025-21339: Windows Telephony Service Remote Code Execution Vulnerability
Windows Telephony Service Remote Code Execution Vulnerability
nvd
CVE-2025-21417HIGHCVSS 8.8fixed in 10.0.19044.53712025-01-14
CVE-2025-21417 [HIGH] CWE-122 CVE-2025-21417: Windows Telephony Service Remote Code Execution Vulnerability
Windows Telephony Service Remote Code Execution Vulnerability
nvd
CVE-2025-21281HIGHCVSS 7.8fixed in 10.0.19044.53712025-01-14
CVE-2025-21281 [HIGH] CWE-416 CVE-2025-21281: Microsoft COM for Windows Elevation of Privilege Vulnerability
Microsoft COM for Windows Elevation of Privilege Vulnerability
nvd
CVE-2025-21286HIGHCVSS 8.8fixed in 10.0.19044.53712025-01-14
CVE-2025-21286 [HIGH] CWE-122 CVE-2025-21286: Windows Telephony Service Remote Code Execution Vulnerability
Windows Telephony Service Remote Code Execution Vulnerability
nvd
CVE-2025-21303HIGHCVSS 8.8fixed in 10.0.19044.53712025-01-14
CVE-2025-21303 [HIGH] CWE-122 CVE-2025-21303: Windows Telephony Service Remote Code Execution Vulnerability
Windows Telephony Service Remote Code Execution Vulnerability
nvd
CVE-2025-21244HIGHCVSS 8.8fixed in 10.0.19044.53712025-01-14
CVE-2025-21244 [HIGH] CWE-190 CVE-2025-21244: Windows Telephony Service Remote Code Execution Vulnerability
Windows Telephony Service Remote Code Execution Vulnerability
nvd
CVE-2025-21287HIGHCVSS 7.8fixed in 10.0.19044.53712025-01-14
CVE-2025-21287 [HIGH] CWE-269 CVE-2025-21287: Windows Installer Elevation of Privilege Vulnerability
Windows Installer Elevation of Privilege Vulnerability
nvd
CVE-2025-21271HIGHCVSS 7.8fixed in 10.0.19044.53712025-01-14
CVE-2025-21271 [HIGH] CWE-126 CVE-2025-21271: Windows Cloud Files Mini Filter Driver Elevation of Privilege Vulnerability
Windows Cloud Files Mini Filter Driver Elevation of Privilege Vulnerability
nvd
CVE-2025-21304HIGHCVSS 7.8fixed in 10.0.19044.53712025-01-14
CVE-2025-21304 [HIGH] CWE-416 CVE-2025-21304: Microsoft DWM Core Library Elevation of Privilege Vulnerability
Microsoft DWM Core Library Elevation of Privilege Vulnerability
nvd