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 136 of 188
CVE-2026-50321P3HIGHCVSS 7.0fixed in 10.0.19044.75482026-07-14
CVE-2026-50321 [HIGH] CWE-362 CVE-2026-50321: Concurrent execution using shared resource with improper synchronization ('race condition') in Windo
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows USB Driver allows an authorized attacker to elevate privileges locally.
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CVE-2026-42912P3HIGHCVSS 7.0fixed in 10.0.19044.74172026-06-09
CVE-2026-42912 [HIGH] CWE-362 CVE-2026-42912: Concurrent execution using shared resource with improper synchronization ('race condition') in Windo
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Telephony Service allows an authorized attacker to elevate privileges locally.
nvd
CVE-2026-34345P3HIGHCVSS 7.0fixed in 10.0.19044.72912026-05-12
CVE-2026-34345 [HIGH] CWE-362 CVE-2026-34345: Access of resource using incompatible type ('type confusion') in Windows Ancillary Function Driver f
Access of resource using incompatible type ('type confusion') in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.
nvd
CVE-2026-68824P3HIGHCVSS 7.0fixed in 10.0.19044.77252026-09-08
CVE-2026-68824 [HIGH] CWE-362 CVE-2026-68824: Concurrent execution using shared resource with improper synchronization ('race condition') in Windo
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Connected User Experiences and Telemetry allows an authorized attacker to elevate privileges locally.
nvd
CVE-2026-69466P3HIGHCVSS 7.0fixed in 10.0.19044.77252026-09-08
CVE-2026-69466 [HIGH] CWE-367 CVE-2026-69466: Time-of-check time-of-use (toctou) race condition in Windows Kernel allows an authorized attacker to
Time-of-check time-of-use (toctou) race condition in Windows Kernel allows an authorized attacker to elevate privileges locally.
nvd
CVE-2026-69319P3HIGHCVSS 7.0fixed in 10.0.19044.77252026-09-08
CVE-2026-69319 [HIGH] CWE-362 CVE-2026-69319: Concurrent execution using shared resource with improper synchronization ('race condition') in Windo
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows USB Video Driver allows an authorized attacker to elevate privileges locally.
nvd
CVE-2026-62727P3HIGHCVSS 7.0fixed in 10.0.19044.76632026-08-19
CVE-2026-62727 [HIGH] CWE-362 CVE-2026-62727: Concurrent execution using shared resource with improper synchronization ('race condition') in Windo
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Telephony Service allows an authorized attacker to elevate privileges locally.
nvd
CVE-2026-62734P3HIGHCVSS 7.0fixed in 10.0.19044.76632026-08-11
CVE-2026-62734 [HIGH] CWE-362 CVE-2026-62734: Concurrent execution using shared resource with improper synchronization ('race condition') in Windo
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Telephony Service allows an authorized attacker to elevate privileges locally.
nvd
CVE-2026-62748P3HIGHCVSS 7.0fixed in 10.0.19044.76632026-08-11
CVE-2026-62748 [HIGH] CWE-362 CVE-2026-62748: Concurrent execution using shared resource with improper synchronization ('race condition') in Windo
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Telephony Service allows an authorized attacker to elevate privileges locally.
nvd
CVE-2026-59122P3HIGHCVSS 7.0fixed in 10.0.19044.76632026-08-11
CVE-2026-59122 [HIGH] CWE-362 CVE-2026-59122: Concurrent execution using shared resource with improper synchronization ('race condition') in Windo
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Telephony Service allows an authorized attacker to elevate privileges locally.
nvd
CVE-2026-59126P3HIGHCVSS 7.0fixed in 10.0.19044.76632026-08-11
CVE-2026-59126 [HIGH] CWE-362 CVE-2026-59126: Concurrent execution using shared resource with improper synchronization ('race condition') in Windo
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Event Logging Service allows an authorized attacker to elevate privileges locally.
nvd
CVE-2026-62729P3HIGHCVSS 7.0fixed in 10.0.19044.76632026-08-11
CVE-2026-62729 [HIGH] CWE-362 CVE-2026-62729: Concurrent execution using shared resource with improper synchronization ('race condition') in Windo
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Telephony Service allows an authorized attacker to elevate privileges locally.
nvd
CVE-2026-62908P3HIGHCVSS 7.0fixed in 10.0.19044.76632026-08-11
CVE-2026-62908 [HIGH] CWE-362 CVE-2026-62908: Concurrent execution using shared resource with improper synchronization ('race condition') in Windo
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Backup Engine allows an authorized attacker to elevate privileges locally.
nvd
CVE-2026-58598P3HIGHCVSS 7.0fixed in 10.0.19044.75482026-07-16
CVE-2026-58598 [HIGH] CWE-362 CVE-2026-58598: Concurrent execution using shared resource with improper synchronization ('race condition') in Windo
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Backup Engine allows an authorized attacker to elevate privileges locally.
nvd
CVE-2026-49803P3HIGHCVSS 7.0fixed in 10.0.19044.75482026-07-14
CVE-2026-49803 [HIGH] CWE-362 CVE-2026-49803: Concurrent execution using shared resource with improper synchronization ('race condition') in Windo
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows AppX Deployment Service allows an authorized attacker to elevate privileges locally.
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CVE-2026-49183P3HIGHCVSS 7.0fixed in 10.0.19044.75482026-07-14
CVE-2026-49183 [HIGH] CWE-362 CVE-2026-49183: Concurrent execution using shared resource with improper synchronization ('race condition') in Windo
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Clipboard Server allows an authorized attacker to elevate privileges locally.
nvd
CVE-2026-50384P3HIGHCVSS 7.0fixed in 10.0.19044.75482026-07-14
CVE-2026-50384 [HIGH] CWE-362 CVE-2026-50384: Concurrent execution using shared resource with improper synchronization ('race condition') in Windo
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Clip Service allows an authorized attacker to elevate privileges locally.
nvd
CVE-2026-50669P3HIGHCVSS 7.0fixed in 10.0.19044.75482026-07-14
CVE-2026-50669 [HIGH] CWE-362 CVE-2026-50669: Concurrent execution using shared resource with improper synchronization ('race condition') in Windo
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Telephony Service allows an authorized attacker to elevate privileges locally.
nvd
CVE-2026-35418P3HIGHCVSS 7.0fixed in 10.0.19044.72912026-05-12
CVE-2026-35418 [HIGH] CWE-367 CVE-2026-35418: Use after free in Windows Cloud Files Mini Filter Driver allows an authorized attacker to elevate pr
Use after free in Windows Cloud Files Mini Filter Driver allows an authorized attacker to elevate privileges locally.
nvd
CVE-2026-88106P3HIGHCVSS 7.0fixed in 10.0.19044.78072026-10-13
CVE-2026-88106 [HIGH] CWE-416 CVE-2026-88106: Use after free in Windows Cloud Files Mini Filter Driver allows an authorized attacker to elevate pr
Use after free in Windows Cloud Files Mini Filter Driver allows an authorized attacker to elevate privileges locally.
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