cbcvebase.

Microsoft Windows 10 21H2 vulnerabilities

1,827 known vulnerabilities affecting microsoft/windows_10_21h2.

Total CVEs
1,827
CISA KEV
87
actively exploited
Public exploits
54
Exploited in wild
97
Severity breakdown
CRITICAL44HIGH1303MEDIUM473LOW7

Vulnerabilities

Page 36 of 92
CVE-2025-49733P3HIGHCVSS 7.8fixed in 10.0.19044.60932025-07-08
CVE-2025-49733 [HIGH] CWE-416 CVE-2025-49733: Use after free in Windows Win32K - ICOMP allows an authorized attacker to elevate privileges locally Use after free in Windows Win32K - ICOMP allows an authorized attacker to elevate privileges locally.
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CVE-2025-49725P3HIGHCVSS 7.8fixed in 10.0.19044.60932025-07-08
CVE-2025-49725 [HIGH] CWE-416 CVE-2025-49725: Use after free in Windows Notification allows an authorized attacker to elevate privileges locally. Use after free in Windows Notification allows an authorized attacker to elevate privileges locally.
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CVE-2025-59192P3HIGHCVSS 7.8fixed in 10.0.19044.64562025-10-14
CVE-2025-59192 [HIGH] CWE-126 CVE-2025-59192: Buffer over-read in Storport.sys Driver allows an authorized attacker to elevate privileges locally. Buffer over-read in Storport.sys Driver allows an authorized attacker to elevate privileges locally.
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CVE-2026-33828P3HIGHCVSS 7.8fixed in 10.0.19044.74172026-06-09
CVE-2026-33828 [HIGH] CWE-501 CVE-2026-33828: Trust boundary violation in Windows Attestation allows an authorized attacker to elevate privileges Trust boundary violation in Windows Attestation allows an authorized attacker to elevate privileges locally.
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CVE-2026-32155P3HIGHCVSS 7.8fixed in 10.0.19044.71842026-04-14
CVE-2026-32155 [HIGH] CWE-416 CVE-2026-32155: Use after free in Desktop Window Manager allows an authorized attacker to elevate privileges locally Use after free in Desktop Window Manager allows an authorized attacker to elevate privileges locally.
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CVE-2026-32074P3HIGHCVSS 7.8fixed in 10.0.19044.71842026-04-14
CVE-2026-32074 [HIGH] CWE-415 CVE-2026-32074: Double free in Windows Projected File System allows an authorized attacker to elevate privileges loc Double free in Windows Projected File System allows an authorized attacker to elevate privileges locally.
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CVE-2026-32078P3HIGHCVSS 7.8fixed in 10.0.19044.71842026-04-14
CVE-2026-32078 [HIGH] CWE-416 CVE-2026-32078: Use after free in Windows Projected File System allows an authorized attacker to elevate privileges Use after free in Windows Projected File System allows an authorized attacker to elevate privileges locally.
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CVE-2026-32069P3HIGHCVSS 7.8fixed in 10.0.19044.71842026-04-14
CVE-2026-32069 [HIGH] CWE-415 CVE-2026-32069: Double free in Windows Projected File System allows an authorized attacker to elevate privileges loc Double free in Windows Projected File System allows an authorized attacker to elevate privileges locally.
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CVE-2026-34338P3HIGHCVSS 7.8fixed in 10.0.19044.72912026-05-12
CVE-2026-34338 [HIGH] CWE-416 CVE-2026-34338: Use after free in Windows Telephony Service allows an authorized attacker to elevate privileges loca Use after free in Windows Telephony Service allows an authorized attacker to elevate privileges locally.
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CVE-2026-40382P3HIGHCVSS 7.8fixed in 10.0.19044.72912026-05-12
CVE-2026-40382 [HIGH] CWE-416 CVE-2026-40382: Use after free in Windows Telephony Service allows an authorized attacker to elevate privileges loca Use after free in Windows Telephony Service allows an authorized attacker to elevate privileges locally.
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CVE-2025-59278P3HIGHCVSS 7.8fixed in 10.0.19044.64562025-10-14
CVE-2025-59278 [HIGH] CWE-1287 CVE-2025-59278: Improper validation of specified type of input in Windows Authentication Methods allows an authorize Improper validation of specified type of input in Windows Authentication Methods allows an authorized attacker to elevate privileges locally.
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CVE-2025-59275P3HIGHCVSS 7.8fixed in 10.0.19044.64562025-10-14
CVE-2025-59275 [HIGH] CWE-122 CVE-2025-59275: Improper validation of specified type of input in Windows Authentication Methods allows an authorize Improper validation of specified type of input in Windows Authentication Methods allows an authorized attacker to elevate privileges locally.
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CVE-2026-32089P3HIGHCVSS 7.8fixed in 10.0.19044.71842026-04-14
CVE-2026-32089 [HIGH] CWE-362 CVE-2026-32089: Use after free in Windows Speech Brokered Api allows an authorized attacker to elevate privileges lo Use after free in Windows Speech Brokered Api allows an authorized attacker to elevate privileges locally.
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CVE-2026-27916P3HIGHCVSS 7.8fixed in 10.0.19044.71842026-04-14
CVE-2026-27916 [HIGH] CWE-416 CVE-2026-27916: Use after free in Windows Universal Plug and Play (UPnP) Device Host allows an authorized attacker t Use after free in Windows Universal Plug and Play (UPnP) Device Host allows an authorized attacker to elevate privileges locally.
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CVE-2025-64661P3HIGHCVSS 7.8fixed in 10.0.19044.66912025-12-09
CVE-2025-64661 [HIGH] CWE-362 CVE-2025-64661: Concurrent execution using shared resource with improper synchronization ('race condition') in Windo Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Shell allows an authorized attacker to elevate privileges locally.
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CVE-2026-45637P3HIGHCVSS 7.8fixed in 10.0.19044.74172026-06-09
CVE-2026-45637 [HIGH] CWE-416 CVE-2026-45637: 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.
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CVE-2026-45605P3HIGHCVSS 7.8fixed in 10.0.19044.74172026-06-09
CVE-2026-45605 [HIGH] CWE-416 CVE-2026-45605: Use after free in Windows Bluetooth Service allows an authorized attacker to elevate privileges loca Use after free in Windows Bluetooth Service allows an authorized attacker to elevate privileges locally.
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CVE-2026-45638P3HIGHCVSS 7.8fixed in 10.0.19044.74172026-06-09
CVE-2026-45638 [HIGH] CWE-122 CVE-2026-45638: Use after free in Windows Ancillary Function Driver for WinSock allows an authorized attacker to ele Use after free in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.
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CVE-2026-45593P3HIGHCVSS 7.8fixed in 10.0.19044.74172026-06-09
CVE-2026-45593 [HIGH] CWE-190 CVE-2026-45593: Use after free in Windows SDK allows an authorized attacker to elevate privileges locally. Use after free in Windows SDK allows an authorized attacker to elevate privileges locally.
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CVE-2026-42983P3HIGHCVSS 7.8fixed in 10.0.19044.74172026-06-09
CVE-2026-42983 [HIGH] CWE-416 CVE-2026-42983: 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.
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