Microsoft Windows 10 Version 21H2 vulnerabilities
2,906 known vulnerabilities affecting microsoft/windows_10_version_21h2.
Total CVEs
2,906
CISA KEV
95
actively exploited
Public exploits
67
Exploited in wild
123
Severity breakdown
CRITICAL79HIGH2093MEDIUM721LOW13
Vulnerabilities
Page 53 of 146
CVE-2026-27916P3HIGHCVSS 7.8≥ 10.0.19044.0, < 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.
nvd
CVE-2025-64661P3HIGHCVSS 7.8≥ 10.0.19044.0, < 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-2026-27923P3HIGHCVSS 7.8≥ 10.0.19044.0, < 10.0.19044.71842026-04-14
CVE-2026-27923 [HIGH] CWE-416 CVE-2026-27923: 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.
nvd
CVE-2026-49171P3HIGHCVSS 7.8≥ 10.0.19044.0, < 10.0.19044.75482026-07-14
CVE-2026-49171 [HIGH] CWE-416 CVE-2026-49171: Use after free in Microsoft Windows Speech allows an authorized attacker to elevate privileges local
Use after free in Microsoft Windows Speech allows an authorized attacker to elevate privileges locally.
nvd
CVE-2026-50405P3HIGHCVSS 7.8≥ 10.0.19044.0, < 10.0.19044.75482026-07-14
CVE-2026-50405 [HIGH] CWE-1220 CVE-2026-50405: Insufficient granularity of access control in Windows Filtering Platform (WFP) allows an authorized
Insufficient granularity of access control in Windows Filtering Platform (WFP) allows an authorized attacker to elevate privileges locally.
nvd
CVE-2026-32160P3HIGHCVSS 7.8≥ 10.0.19044.0, < 10.0.19044.71842026-04-14
CVE-2026-32160 [HIGH] CWE-362 CVE-2026-32160: Concurrent execution using shared resource with improper synchronization ('race condition') in Windo
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Push Notifications allows an authorized attacker to elevate privileges locally.
nvd
CVE-2026-32159P3HIGHCVSS 7.8≥ 10.0.19044.0, < 10.0.19044.71842026-04-14
CVE-2026-32159 [HIGH] CWE-362 CVE-2026-32159: Concurrent execution using shared resource with improper synchronization ('race condition') in Windo
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Push Notifications allows an authorized attacker to elevate privileges locally.
nvd
CVE-2026-32158P3HIGHCVSS 7.8≥ 10.0.19044.0, < 10.0.19044.71842026-04-14
CVE-2026-32158 [HIGH] CWE-362 CVE-2026-32158: Concurrent execution using shared resource with improper synchronization ('race condition') in Windo
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Push Notifications allows an authorized attacker to elevate privileges locally.
nvd
CVE-2026-32153P3HIGHCVSS 7.8≥ 10.0.19044.0, < 10.0.19044.71842026-04-14
CVE-2026-32153 [HIGH] CWE-362 CVE-2026-32153: Use after free in Microsoft Windows Speech allows an authorized attacker to elevate privileges local
Use after free in Microsoft Windows Speech allows an authorized attacker to elevate privileges locally.
nvd
CVE-2026-20930P3HIGHCVSS 7.8≥ 10.0.19044.0, < 10.0.19044.71842026-04-14
CVE-2026-20930 [HIGH] CWE-362 CVE-2026-20930: Concurrent execution using shared resource with improper synchronization ('race condition') in Windo
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Management Services allows an authorized attacker to elevate privileges locally.
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CVE-2026-42979P3HIGHCVSS 7.8≥ 10.0.19044.0, < 10.0.19044.74172026-06-09
CVE-2026-42979 [HIGH] CWE-362 CVE-2026-42979: Concurrent execution using shared resource with improper synchronization ('race condition') in Windo
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Push Notifications allows an authorized attacker to elevate privileges locally.
nvd
CVE-2026-42977P3HIGHCVSS 7.8≥ 10.0.19044.0, < 10.0.19044.74172026-06-09
CVE-2026-42977 [HIGH] CWE-362 CVE-2026-42977: Concurrent execution using shared resource with improper synchronization ('race condition') in Windo
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Push Notifications allows an authorized attacker to elevate privileges locally.
nvd
CVE-2026-50457P3HIGHCVSS 7.8≥ 10.0.19044.0, < 10.0.19044.75482026-07-14
CVE-2026-50457 [HIGH] CWE-362 CVE-2026-50457: Use after free in Windows Runtime allows an authorized attacker to elevate privileges locally.
Use after free in Windows Runtime allows an authorized attacker to elevate privileges locally.
nvd
CVE-2026-54125P3HIGHCVSS 7.8≥ 10.0.19044.0, < 10.0.19044.75482026-07-14
CVE-2026-54125 [HIGH] CWE-362 CVE-2026-54125: Concurrent execution using shared resource with improper synchronization ('race condition') in Windo
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Runtime allows an authorized attacker to elevate privileges locally.
nvd
CVE-2026-50427P3HIGHCVSS 7.8≥ 10.0.19044.0, < 10.0.19044.75482026-07-14
CVE-2026-50427 [HIGH] CWE-362 CVE-2026-50427: Use after free in Content Delivery Manager allows an authorized attacker to elevate privileges local
Use after free in Content Delivery Manager allows an authorized attacker to elevate privileges locally.
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CVE-2026-58628P3HIGHCVSS 7.8≥ 10.0.19044.0, < 10.0.19044.75482026-07-14
CVE-2026-58628 [HIGH] CWE-362 CVE-2026-58628: Concurrent execution using shared resource with improper synchronization ('race condition') in Windo
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Wireless Networking allows an authorized attacker to elevate privileges locally.
nvd
CVE-2026-26168P3HIGHCVSS 7.8≥ 10.0.19044.0, < 10.0.19044.71842026-04-14
CVE-2026-26168 [HIGH] CWE-362 CVE-2026-26168: Concurrent execution using shared resource with improper synchronization ('race condition') in Windo
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.
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CVE-2026-26167P3HIGHCVSS 7.8≥ 10.0.19044.0, < 10.0.19044.71842026-04-14
CVE-2026-26167 [HIGH] CWE-362 CVE-2026-26167: Concurrent execution using shared resource with improper synchronization ('race condition') in Windo
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Push Notifications allows an authorized attacker to elevate privileges locally.
nvd
CVE-2026-42991P3HIGHCVSS 7.8≥ 10.0.19044.0, < 10.0.19044.74172026-06-09
CVE-2026-42991 [HIGH] CWE-362 CVE-2026-42991: Concurrent execution using shared resource with improper synchronization ('race condition') in Windo
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Push Notifications allows an authorized attacker to elevate privileges locally.
nvd
CVE-2026-58526P3HIGHCVSS 7.8≥ 10.0.19044.0, < 10.0.19044.75482026-07-14
CVE-2026-58526 [HIGH] CWE-362 CVE-2026-58526: Use after free in Windows Storage allows an authorized attacker to elevate privileges locally.
Use after free in Windows Storage allows an authorized attacker to elevate privileges locally.
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