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Microsoft Windows 10 21H2 vulnerabilities

3,745 known vulnerabilities affecting microsoft/windows_10_21h2.

Total CVEs
3,745
CISA KEV
91
actively exploited
Public exploits
55
Exploited in wild
102
Severity breakdown
CRITICAL123HIGH2691MEDIUM922LOW9

Vulnerabilities

Page 118 of 188
CVE-2026-83718P3HIGHCVSS 7.0fixed in 10.0.19044.78072026-10-13
CVE-2026-83718 [HIGH] CWE-416 CVE-2026-83718: Use after free in Windows Installer allows an authorized attacker to elevate privileges locally. Use after free in Windows Installer allows an authorized attacker to elevate privileges locally.
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CVE-2026-83701P3HIGHCVSS 7.0fixed in 10.0.19044.78072026-10-13
CVE-2026-83701 [HIGH] CWE-416 CVE-2026-83701: Use after free in Windows Now Playing Session Manager allows an authorized attacker to elevate privi Use after free in Windows Now Playing Session Manager allows an authorized attacker to elevate privileges locally.
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CVE-2026-83584P3HIGHCVSS 7.0fixed in 10.0.19044.78072026-10-13
CVE-2026-83584 [HIGH] CWE-416 CVE-2026-83584: Use after free in Windows Smart Card allows an authorized attacker to elevate privileges locally. Use after free in Windows Smart Card allows an authorized attacker to elevate privileges locally.
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CVE-2026-83707P3HIGHCVSS 7.0fixed in 10.0.19044.78072026-10-13
CVE-2026-83707 [HIGH] CWE-416 CVE-2026-83707: Use after free in Windows Event Tracing allows an authorized attacker to elevate privileges locally. Use after free in Windows Event Tracing allows an authorized attacker to elevate privileges locally.
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CVE-2026-83740P3HIGHCVSS 7.0fixed in 10.0.19044.78072026-10-13
CVE-2026-83740 [HIGH] CWE-416 CVE-2026-83740: Use after free in Windows Hello allows an authorized attacker to elevate privileges locally. Use after free in Windows Hello allows an authorized attacker to elevate privileges locally.
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CVE-2026-83853P3HIGHCVSS 7.0fixed in 10.0.19044.78072026-10-13
CVE-2026-83853 [HIGH] CWE-416 CVE-2026-83853: Use after free in Windows Hello allows an authorized attacker to elevate privileges locally. Use after free in Windows Hello allows an authorized attacker to elevate privileges locally.
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CVE-2026-96852P3HIGHCVSS 7.0fixed in 10.0.19044.78072026-10-13
CVE-2026-96852 [HIGH] CWE-416 CVE-2026-96852: Use after free in Windows TCP/IP allows an authorized attacker to elevate privileges locally. Use after free in Windows TCP/IP allows an authorized attacker to elevate privileges locally.
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CVE-2026-83790P3HIGHCVSS 7.0fixed in 10.0.19044.78072026-10-13
CVE-2026-83790 [HIGH] CWE-416 CVE-2026-83790: Use after free in Windows Hello allows an authorized attacker to elevate privileges locally. Use after free in Windows Hello allows an authorized attacker to elevate privileges locally.
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CVE-2026-83702P3HIGHCVSS 7.0fixed in 10.0.19044.78072026-10-13
CVE-2026-83702 [HIGH] CWE-416 CVE-2026-83702: Use after free in Windows Installer allows an authorized attacker to elevate privileges locally. Use after free in Windows Installer allows an authorized attacker to elevate privileges locally.
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CVE-2026-83866P3HIGHCVSS 7.0fixed in 10.0.19044.78072026-10-13
CVE-2026-83866 [HIGH] CWE-416 CVE-2026-83866: 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.
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CVE-2026-108468P3HIGHCVSS 7.0fixed in 10.0.19044.78072026-10-13
CVE-2026-108468 [HIGH] CWE-416 CVE-2026-108468: Use after free in Windows Installer allows an authorized attacker to elevate privileges locally. Use after free in Windows Installer allows an authorized attacker to elevate privileges locally.
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CVE-2026-83710P3HIGHCVSS 7.0fixed in 10.0.19044.78072026-10-13
CVE-2026-83710 [HIGH] CWE-416 CVE-2026-83710: Use after free in Windows Device Association Service allows an authorized attacker to elevate privil Use after free in Windows Device Association Service allows an authorized attacker to elevate privileges locally.
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CVE-2026-88127P3HIGHCVSS 7.0fixed in 10.0.19044.78072026-10-13
CVE-2026-88127 [HIGH] CWE-416 CVE-2026-88127: Use after free in Windows SMB Server allows an authorized attacker to elevate privileges locally. Use after free in Windows SMB Server allows an authorized attacker to elevate privileges locally.
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CVE-2026-70272P3HIGHCVSS 7.0fixed in 10.0.19044.78072026-10-13
CVE-2026-70272 [HIGH] CWE-416 CVE-2026-70272: Use after free in Windows Installer allows an authorized attacker to elevate privileges locally. Use after free in Windows Installer allows an authorized attacker to elevate privileges locally.
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CVE-2026-83917P3HIGHCVSS 7.0fixed in 10.0.19044.78072026-10-13
CVE-2026-83917 [HIGH] CWE-416 CVE-2026-83917: Use after free in Windows ALPC allows an authorized attacker to elevate privileges locally. Use after free in Windows ALPC allows an authorized attacker to elevate privileges locally.
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CVE-2026-21237P3HIGHCVSS 7.0fixed in 10.0.19044.69372026-02-10
CVE-2026-21237 [HIGH] CWE-362 CVE-2026-21237: Concurrent execution using shared resource with improper synchronization ('race condition') in Windo Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Subsystem for Linux allows an authorized attacker to elevate privileges locally.
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CVE-2026-69287P3HIGHCVSS 7.0fixed in 10.0.19044.77252026-09-08
CVE-2026-69287 [HIGH] CWE-416 CVE-2026-69287: Use after free in Windows Remote Desktop Services allows an authorized attacker to elevate privilege Use after free in Windows Remote Desktop Services allows an authorized attacker to elevate privileges locally.
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CVE-2026-69335P3HIGHCVSS 7.0fixed in 10.0.19044.77252026-09-08
CVE-2026-69335 [HIGH] CWE-416 CVE-2026-69335: 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.
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CVE-2026-72930P3HIGHCVSS 7.0fixed in 10.0.19044.77252026-09-08
CVE-2026-72930 [HIGH] CWE-416 CVE-2026-72930: Use after free in Windows Secure Socket Tunneling Protocol (SSTP) allows an authorized attacker to e Use after free in Windows Secure Socket Tunneling Protocol (SSTP) allows an authorized attacker to execute code locally.
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CVE-2026-69517P3HIGHCVSS 7.0fixed in 10.0.19044.77252026-09-08
CVE-2026-69517 [HIGH] CWE-416 CVE-2026-69517: Use after free in Windows Wireless Networking allows an authorized attacker to elevate privileges lo Use after free in Windows Wireless Networking allows an authorized attacker to elevate privileges locally.
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Microsoft Windows 10 21H2 vulnerabilities | cvebase