Microsoft Windows 10 Version 21H2 vulnerabilities

2,449 known vulnerabilities affecting microsoft/windows_10_version_21h2.

Total CVEs
2,449
CISA KEV
94
actively exploited
Public exploits
27
Exploited in wild
75
Severity breakdown
CRITICAL60HIGH1758MEDIUM621LOW10

Vulnerabilities

Page 6 of 123
CVE-2026-32218MEDIUMCVSS 5.5≥ 10.0.19044.0, < 10.0.19044.71842026-04-14
CVE-2026-32218 [MEDIUM] CWE-532 CVE-2026-32218: Insertion of sensitive information into log file in Windows Kernel allows an authorized attacker to Insertion of sensitive information into log file in Windows Kernel allows an authorized attacker to disclose information locally.
cvelistv5nvd
CVE-2026-33829MEDIUMCVSS 4.3≥ 10.0.19044.0, < 10.0.19044.71842026-04-14
CVE-2026-33829 [MEDIUM] CWE-200 CVE-2026-33829: Exposure of sensitive information to an unauthorized actor in Windows Snipping Tool allows an unauth Exposure of sensitive information to an unauthorized actor in Windows Snipping Tool allows an unauthorized attacker to perform spoofing over a network.
cvelistv5nvd
CVE-2026-32084MEDIUMCVSS 5.5≥ 10.0.19044.0, < 10.0.19044.71842026-04-14
CVE-2026-32084 [MEDIUM] CWE-200 CVE-2026-32084: Exposure of sensitive information to an unauthorized actor in Windows File Explorer allows an author Exposure of sensitive information to an unauthorized actor in Windows File Explorer allows an authorized attacker to disclose information locally.
cvelistv5nvd
CVE-2026-20806MEDIUMCVSS 5.5≥ 10.0.19044.0, < 10.0.19044.71842026-04-14
CVE-2026-20806 [MEDIUM] CWE-843 CVE-2026-20806: Access of resource using incompatible type ('type confusion') in Windows COM allows an authorized at Access of resource using incompatible type ('type confusion') in Windows COM allows an authorized attacker to disclose information locally.
cvelistv5nvd
CVE-2026-32181MEDIUMCVSS 5.5≥ 10.0.19044.0, < 10.0.19044.71842026-04-14
CVE-2026-32181 [MEDIUM] CWE-269 CVE-2026-32181: Improper privilege management in Microsoft Windows allows an authorized attacker to deny service loc Improper privilege management in Microsoft Windows allows an authorized attacker to deny service locally.
cvelistv5nvd
CVE-2026-25171HIGHCVSS 7.0≥ 10.0.19044.0, < 10.0.19044.70582026-03-10
CVE-2026-25171 [HIGH] CWE-416 CVE-2026-25171: Use after free in Windows Authentication Methods allows an authorized attacker to elevate privileges Use after free in Windows Authentication Methods allows an authorized attacker to elevate privileges locally.
cvelistv5nvd
CVE-2026-24293HIGHCVSS 7.8≥ 10.0.19044.0, < 10.0.19044.70582026-03-10
CVE-2026-24293 [HIGH] CWE-476 CVE-2026-24293: Null pointer dereference in Windows Ancillary Function Driver for WinSock allows an authorized attac Null pointer dereference in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.
cvelistv5nvd
CVE-2026-25165HIGHCVSS 7.8≥ 10.0.19044.0, < 10.0.19044.70582026-03-10
CVE-2026-25165 [HIGH] CWE-476 CVE-2026-25165: Null pointer dereference in Windows Performance Counters allows an authorized attacker to elevate pr Null pointer dereference in Windows Performance Counters allows an authorized attacker to elevate privileges locally.
cvelistv5nvd
CVE-2026-24296HIGHCVSS 7.0≥ 10.0.19044.0, < 10.0.19044.70582026-03-10
CVE-2026-24296 [HIGH] CWE-362 CVE-2026-24296: Concurrent execution using shared resource with improper synchronization ('race condition') in Windo Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Device Association Service allows an authorized attacker to elevate privileges locally.
cvelistv5nvd
CVE-2026-23673HIGHCVSS 7.8≥ 10.0.19044.0, < 10.0.19044.70582026-03-10
CVE-2026-23673 [HIGH] CWE-125 CVE-2026-23673: Out-of-bounds read in Windows Resilient File System (ReFS) allows an authorized attacker to elevate Out-of-bounds read in Windows Resilient File System (ReFS) allows an authorized attacker to elevate privileges locally.
cvelistv5nvd
CVE-2026-25190HIGHCVSS 7.8≥ 10.0.19044.0, < 10.0.19044.70582026-03-10
CVE-2026-25190 [HIGH] CWE-426 CVE-2026-25190: Untrusted search path in Windows GDI allows an unauthorized attacker to execute code locally. Untrusted search path in Windows GDI allows an unauthorized attacker to execute code locally.
cvelistv5nvd
CVE-2026-24285HIGHCVSS 7.0≥ 10.0.19044.0, < 10.0.19044.70582026-03-10
CVE-2026-24285 [HIGH] CWE-416 CVE-2026-24285: Use after free in Windows Win32K allows an authorized attacker to elevate privileges locally. Use after free in Windows Win32K allows an authorized attacker to elevate privileges locally.
cvelistv5nvd
CVE-2026-26132HIGHCVSS 7.8≥ 10.0.19044.0, < 10.0.19044.70582026-03-10
CVE-2026-26132 [HIGH] CWE-416 CVE-2026-26132: Use after free in Windows Kernel allows an authorized attacker to elevate privileges locally. Use after free in Windows Kernel allows an authorized attacker to elevate privileges locally.
cvelistv5nvd
CVE-2026-26128HIGHCVSS 7.8≥ 10.0.19044.0, < 10.0.19044.70582026-03-10
CVE-2026-26128 [HIGH] CWE-287 CVE-2026-26128: Improper authentication in Windows SMB Server allows an authorized attacker to elevate privileges lo Improper authentication in Windows SMB Server allows an authorized attacker to elevate privileges locally.
cvelistv5nvd
CVE-2026-25175HIGHCVSS 7.8≥ 10.0.19044.0, < 10.0.19044.70582026-03-10
CVE-2026-25175 [HIGH] CWE-125 CVE-2026-25175: Out-of-bounds read in Windows NTFS allows an authorized attacker to elevate privileges locally. Out-of-bounds read in Windows NTFS allows an authorized attacker to elevate privileges locally.
cvelistv5nvd
CVE-2026-24287HIGHCVSS 7.8≥ 10.0.19044.0, < 10.0.19044.70582026-03-10
CVE-2026-24287 [HIGH] CWE-73 CVE-2026-24287: External control of file name or path in Windows Kernel allows an authorized attacker to elevate pri External control of file name or path in Windows Kernel allows an authorized attacker to elevate privileges locally.
cvelistv5nvd
CVE-2026-24289HIGHCVSS 7.8≥ 10.0.19044.0, < 10.0.19044.70582026-03-10
CVE-2026-24289 [HIGH] CWE-416 CVE-2026-24289: Use after free in Windows Kernel allows an authorized attacker to elevate privileges locally. Use after free in Windows Kernel allows an authorized attacker to elevate privileges locally.
cvelistv5nvd
CVE-2026-25179HIGHCVSS 7.0≥ 10.0.19044.0, < 10.0.19044.70582026-03-10
CVE-2026-25179 [HIGH] CWE-1287 CVE-2026-25179: Improper validation of specified type of input in Windows Ancillary Function Driver for WinSock allo Improper validation of specified type of input in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.
cvelistv5nvd
CVE-2026-26111HIGHCVSS 8.0≥ 10.0.19044.0, < 10.0.19044.70582026-03-10
CVE-2026-26111 [HIGH] CWE-122 CVE-2026-26111: Integer overflow or wraparound in Windows Routing and Remote Access Service (RRAS) allows an authori Integer overflow or wraparound in Windows Routing and Remote Access Service (RRAS) allows an authorized attacker to execute code over a network.
cvelistv5nvd
CVE-2026-25189HIGHCVSS 7.8≥ 10.0.19044.0, < 10.0.19044.70582026-03-10
CVE-2026-25189 [HIGH] CWE-416 CVE-2026-25189: Use after free in Windows DWM Core Library allows an authorized attacker to elevate privileges local Use after free in Windows DWM Core Library allows an authorized attacker to elevate privileges locally.
cvelistv5nvd
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