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
124
Severity breakdown
CRITICAL79HIGH2093MEDIUM721LOW13
Vulnerabilities
Page 96 of 146
CVE-2026-27918P3HIGHCVSS 7.0≥ 10.0.19044.0, < 10.0.19044.71842026-04-14
CVE-2026-27918 [HIGH] CWE-362 CVE-2026-27918: 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-2026-27927P3HIGHCVSS 7.0≥ 10.0.19044.0, < 10.0.19044.71842026-04-14
CVE-2026-27927 [HIGH] CWE-362 CVE-2026-27927: Concurrent execution using shared resource with improper synchronization ('race condition') in Windo
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Projected File System allows an authorized attacker to elevate privileges locally.
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CVE-2026-33839P3HIGHCVSS 7.0≥ 10.0.19044.0, < 10.0.19044.72912026-05-12
CVE-2026-33839 [HIGH] CWE-362 CVE-2026-33839: Concurrent execution using shared resource with improper synchronization ('race condition') in Windo
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Win32K - GRFX allows an authorized attacker to elevate privileges locally.
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CVE-2026-34331P3HIGHCVSS 7.0≥ 10.0.19044.0, < 10.0.19044.72912026-05-12
CVE-2026-34331 [HIGH] CWE-362 CVE-2026-34331: Concurrent execution using shared resource with improper synchronization ('race condition') in Windo
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Win32K - GRFX allows an authorized attacker to elevate privileges locally.
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CVE-2026-58598P3HIGHCVSS 7.0≥ 10.0.19044.0, < 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.
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CVE-2026-26174P3HIGHCVSS 7.0≥ 10.0.19044.0, < 10.0.19044.71842026-04-14
CVE-2026-26174 [HIGH] CWE-362 CVE-2026-26174: Concurrent execution using shared resource with improper synchronization ('race condition') in Windo
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Server Update Service allows an authorized attacker to elevate privileges locally.
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CVE-2025-58727P3HIGHCVSS 7.0≥ 10.0.19044.0, < 10.0.19044.64562025-10-14
CVE-2025-58727 [HIGH] CWE-362 CVE-2025-58727: 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 Devices Platform Service allows an authorized attacker to elevate privileges locally.
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CVE-2026-27926P3HIGHCVSS 7.0≥ 10.0.19044.0, < 10.0.19044.71842026-04-14
CVE-2026-27926 [HIGH] CWE-362 CVE-2026-27926: Concurrent execution using shared resource with improper synchronization ('race condition') in Windo
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Cloud Files Mini Filter Driver allows an authorized attacker to elevate privileges locally.
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CVE-2026-33099P3HIGHCVSS 7.0≥ 10.0.19044.0, < 10.0.19044.71842026-04-14
CVE-2026-33099 [HIGH] CWE-416 CVE-2026-33099: 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-2026-33100P3HIGHCVSS 7.0≥ 10.0.19044.0, < 10.0.19044.71842026-04-14
CVE-2026-33100 [HIGH] CWE-416 CVE-2026-33100: 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-2025-59193P3HIGHCVSS 7.0≥ 10.0.19044.0, < 10.0.19044.64562025-10-14
CVE-2025-59193 [HIGH] CWE-362 CVE-2025-59193: 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-2026-26169P3MEDIUMCVSS 6.1≥ 10.0.19044.0, < 10.0.19044.71842026-04-14
CVE-2026-26169 [MEDIUM] CWE-126 CVE-2026-26169: Buffer over-read in Windows Kernel Memory allows an authorized attacker to disclose information loca
Buffer over-read in Windows Kernel Memory allows an authorized attacker to disclose information locally.
nvd
CVE-2026-32068P3HIGHCVSS 7.0≥ 10.0.19044.0, < 10.0.19044.71842026-04-14
CVE-2026-32068 [HIGH] CWE-362 CVE-2026-32068: Concurrent execution using shared resource with improper synchronization ('race condition') in Windo
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows SSDP Service allows an authorized attacker to elevate privileges locally.
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CVE-2026-34337P3HIGHCVSS 7.0≥ 10.0.19044.0, < 10.0.19044.72912026-05-12
CVE-2026-34337 [HIGH] CWE-362 CVE-2026-34337: 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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CVE-2026-32091P3HIGHCVSS 7.0≥ 10.0.19044.0, < 10.0.19044.71842026-04-14
CVE-2026-32091 [HIGH] CWE-362 CVE-2026-32091: Concurrent execution using shared resource with improper synchronization ('race condition') in Micro
Concurrent execution using shared resource with improper synchronization ('race condition') in Microsoft Brokering File System allows an unauthorized attacker to elevate privileges locally.
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CVE-2026-54107P3HIGHCVSS 7.0≥ 10.0.19044.0, < 10.0.19044.75482026-07-14
CVE-2026-54107 [HIGH] CWE-362 CVE-2026-54107: Concurrent execution using shared resource with improper synchronization ('race condition') in Windo
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Win32K allows an authorized attacker to elevate privileges locally.
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CVE-2026-50321P3HIGHCVSS 7.0≥ 10.0.19044.0, < 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-2026-34334P3HIGHCVSS 7.0≥ 10.0.19044.0, < 10.0.19044.72912026-05-12
CVE-2026-34334 [HIGH] CWE-362 CVE-2026-34334: Concurrent execution using shared resource with improper synchronization ('race condition') in Windo
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows TCP/IP allows an authorized attacker to elevate privileges locally.
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CVE-2026-49803P3HIGHCVSS 7.0≥ 10.0.19044.0, < 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 7.0≥ 10.0.19044.0, < 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.
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