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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 51 of 146
CVE-2025-54092P3HIGHCVSS 7.8≥ 10.0.19044.0, < 10.0.19044.63322025-09-09
CVE-2025-54092 [HIGH] CWE-362 CVE-2025-54092: Concurrent execution using shared resource with improper synchronization ('race condition') in Windo Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Hyper-V allows an authorized attacker to elevate privileges locally.
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CVE-2026-50422P3HIGHCVSS 7.8≥ 10.0.19044.0, < 10.0.19044.75482026-07-14
CVE-2026-50422 [HIGH] CWE-125 CVE-2026-50422: Out-of-bounds read in Windows NTFS allows an authorized attacker to elevate privileges locally. Out-of-bounds read in Windows NTFS allows an authorized attacker to elevate privileges locally.
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CVE-2026-50421P3HIGHCVSS 7.8≥ 10.0.19044.0, < 10.0.19044.75482026-07-14
CVE-2026-50421 [HIGH] CWE-843 CVE-2026-50421: Access of resource using incompatible type ('type confusion') in Windows Connected User Experiences Access of resource using incompatible type ('type confusion') in Windows Connected User Experiences and Telemetry allows an authorized attacker to elevate privileges locally.
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CVE-2026-50357P3HIGHCVSS 7.8≥ 10.0.19044.0, < 10.0.19044.75482026-07-14
CVE-2026-50357 [HIGH] CWE-197 CVE-2026-50357: Numeric truncation error in Windows Resilient File System (ReFS) allows an authorized attacker to ex Numeric truncation error in Windows Resilient File System (ReFS) allows an authorized attacker to execute code locally.
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CVE-2026-58532P3HIGHCVSS 7.8≥ 10.0.19044.0, < 10.0.19044.75482026-07-14
CVE-2026-58532 [HIGH] CWE-190 CVE-2026-58532: Integer overflow or wraparound in Windows Kernel allows an authorized attacker to elevate privileges Integer overflow or wraparound in Windows Kernel allows an authorized attacker to elevate privileges locally.
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CVE-2026-33828P3HIGHCVSS 7.8≥ 10.0.19044.0, < 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-2026-45656P3HIGHCVSS 7.8≥ 10.0.19044.0, < 10.0.19044.74172026-06-09
CVE-2026-45656 [HIGH] CWE-693 CVE-2026-45656: Protection mechanism failure in Windows UEFI allows an authorized attacker to bypass a security feat Protection mechanism failure in Windows UEFI allows an authorized attacker to bypass a security feature locally.
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CVE-2026-33098P3HIGHCVSS 7.8≥ 10.0.19044.0, < 10.0.19044.71842026-04-14
CVE-2026-33098 [HIGH] CWE-416 CVE-2026-33098: Use after free in Windows Container Isolation FS Filter Driver allows an authorized attacker to elev Use after free in Windows Container Isolation FS Filter Driver allows an authorized attacker to elevate privileges locally.
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CVE-2025-55224P3HIGHCVSS 7.8≥ 10.0.19044.0, < 10.0.19044.63322025-09-09
CVE-2025-55224 [HIGH] CWE-362 CVE-2025-55224: 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 execute code locally.
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CVE-2026-27919P3HIGHCVSS 7.8≥ 10.0.19044.0, < 10.0.19044.71842026-04-14
CVE-2026-27919 [HIGH] CWE-822 CVE-2026-27919: Untrusted pointer dereference in Windows Universal Plug and Play (UPnP) Device Host allows an author Untrusted pointer dereference in Windows Universal Plug and Play (UPnP) Device Host allows an authorized attacker to elevate privileges locally.
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CVE-2025-53150P3HIGHCVSS 7.8≥ 10.0.19044.0, < 10.0.19044.64562025-10-14
CVE-2025-53150 [HIGH] CWE-362 CVE-2025-53150: Use after free in Windows Digital Media allows an authorized attacker to elevate privileges locally. Use after free in Windows Digital Media allows an authorized attacker to elevate privileges locally.
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CVE-2025-55228P3HIGHCVSS 7.8≥ 10.0.19044.0, < 10.0.19044.63322025-09-09
CVE-2025-55228 [HIGH] CWE-362 CVE-2025-55228: 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 execute code locally.
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CVE-2026-20877P3HIGHCVSS 7.8≥ 10.0.19044.0, < 10.0.19044.68092026-01-13
CVE-2026-20877 [HIGH] CWE-362 CVE-2026-20877: Use after free in Windows Management Services allows an authorized attacker to elevate privileges lo Use after free in Windows Management Services allows an authorized attacker to elevate privileges locally.
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CVE-2026-20924P3HIGHCVSS 7.8≥ 10.0.19044.0, < 10.0.19044.68092026-01-13
CVE-2026-20924 [HIGH] CWE-362 CVE-2026-20924: Use after free in Windows Management Services allows an authorized attacker to elevate privileges lo Use after free in Windows Management Services allows an authorized attacker to elevate privileges locally.
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CVE-2026-50390P3HIGHCVSS 7.8≥ 10.0.19044.0, < 10.0.19044.75482026-07-14
CVE-2026-50390 [HIGH] CWE-843 CVE-2026-50390: Access of resource using incompatible type ('type confusion') in Windows Kernel allows an authorized Access of resource using incompatible type ('type confusion') in Windows Kernel allows an authorized attacker to elevate privileges locally.
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CVE-2022-30160P3HIGHCVSS 7.8≥ 10.0.19043.0, < 10.0.19043.17662022-06-15
CVE-2022-30160 [HIGH] CVE-2022-30160: Windows Advanced Local Procedure Call (ALPC) Elevation of Privilege Vulnerability Windows Advanced Local Procedure Call (ALPC) Elevation of Privilege Vulnerability
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CVE-2026-20858P3HIGHCVSS 7.8≥ 10.0.19044.0, < 10.0.19044.68092026-01-13
CVE-2026-20858 [HIGH] CWE-362 CVE-2026-20858: Use after free in Windows Management Services allows an authorized attacker to elevate privileges lo Use after free in Windows Management Services allows an authorized attacker to elevate privileges locally.
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CVE-2025-59187P3HIGHCVSS 7.8≥ 10.0.19044.0, < 10.0.19044.64562025-10-14
CVE-2025-59187 [HIGH] CWE-20 CVE-2025-59187: Improper input validation in Windows Kernel allows an authorized attacker to elevate privileges loca Improper input validation in Windows Kernel allows an authorized attacker to elevate privileges locally.
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CVE-2026-45605P3HIGHCVSS 7.8≥ 10.0.19044.0, < 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-2026-50391P3HIGHCVSS 7.8≥ 10.0.19044.0, < 10.0.19044.75482026-07-14
CVE-2026-50391 [HIGH] CWE-269 CVE-2026-50391: Improper privilege management in Windows Group Policy allows an authorized attacker to elevate privi Improper privilege management in Windows Group Policy allows an authorized attacker to elevate privileges locally.
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Microsoft Windows 10 Version 21H2 vulnerabilities | cvebase