Microsoft Windows 10 Version 21H2 vulnerabilities

2,906 known vulnerabilities affecting microsoft/windows_10_version_21h2.

Total CVEs

2,906

CISA KEV

actively exploited

Public exploits

Exploited in wild

123

Severity breakdown

CRITICAL79HIGH2093MEDIUM721LOW13

Vulnerabilities

SortPage 57 of 146

CVE-2026-20822P3HIGHCVSS 7.8≥ 10.0.19044.0, < 10.0.19044.68092026-01-13

CVE-2026-20822 [HIGH] CWE-416 CVE-2026-20822: Use after free in Microsoft Graphics Component allows an authorized attacker to elevate privileges l Use after free in Microsoft Graphics Component allows an authorized attacker to elevate privileges locally.

nvd

CVE-2026-23673P3HIGHCVSS 7.8≥ 10.0.19044.0, < 10.0.19044.70582026-03-10

CVE-2026-23673 [HIGH] CWE-125 CVE-2026-23673: Out-of-bounds read in Windows Resilient File System (ReFS) allows an authorized attacker to elevate Out-of-bounds read in Windows Resilient File System (ReFS) allows an authorized attacker to elevate privileges locally.

nvd

CVE-2025-62457P3HIGHCVSS 7.8≥ 10.0.19044.0, < 10.0.19044.66912025-12-09

CVE-2025-62457 [HIGH] CWE-125 CVE-2025-62457: Out-of-bounds read in Windows Cloud Files Mini Filter Driver allows an authorized attacker to elevat Out-of-bounds read in Windows Cloud Files Mini Filter Driver allows an authorized attacker to elevate privileges locally.

nvd

CVE-2025-62466P3HIGHCVSS 7.8≥ 10.0.19044.0, < 10.0.19044.66912025-12-09

CVE-2025-62466 [HIGH] CWE-476 CVE-2025-62466: Null pointer dereference in Windows Client-Side Caching (CSC) Service allows an authorized attacker Null pointer dereference in Windows Client-Side Caching (CSC) Service allows an authorized attacker to elevate privileges locally.

nvd

CVE-2025-62462P3HIGHCVSS 7.8≥ 10.0.19044.0, < 10.0.19044.66912025-12-09

CVE-2025-62462 [HIGH] CWE-126 CVE-2025-62462: Buffer over-read in Windows Projected File System allows an authorized attacker to elevate privilege Buffer over-read in Windows Projected File System allows an authorized attacker to elevate privileges locally.

nvd

CVE-2025-62464P3HIGHCVSS 7.8≥ 10.0.19044.0, < 10.0.19044.66912025-12-09

CVE-2025-62464 [HIGH] CWE-126 CVE-2025-62464: Buffer over-read in Windows Projected File System allows an authorized attacker to elevate privilege Buffer over-read in Windows Projected File System allows an authorized attacker to elevate privileges locally.

nvd

CVE-2025-55233P3HIGHCVSS 7.8≥ 10.0.19044.0, < 10.0.19044.66912025-12-09

CVE-2025-55233 [HIGH] CWE-125 CVE-2025-55233: Out-of-bounds read in Windows Projected File System allows an authorized attacker to elevate privile Out-of-bounds read in Windows Projected File System allows an authorized attacker to elevate privileges locally.

nvd

CVE-2025-62461P3HIGHCVSS 7.8≥ 10.0.19044.0, < 10.0.19044.66912025-12-09

CVE-2025-62461 [HIGH] CWE-126 CVE-2025-62461: Buffer over-read in Windows Projected File System Filter Driver allows an authorized attacker to ele Buffer over-read in Windows Projected File System Filter Driver allows an authorized attacker to elevate privileges locally.

nvd

CVE-2025-62467P3HIGHCVSS 7.8≥ 10.0.19044.0, < 10.0.19044.66912025-12-09

CVE-2025-62467 [HIGH] CWE-126 CVE-2025-62467: Integer overflow or wraparound in Windows Projected File System allows an authorized attacker to ele Integer overflow or wraparound in Windows Projected File System allows an authorized attacker to elevate privileges locally.

nvd

CVE-2026-50496P3HIGHCVSS 7.5≥ 10.0.19044.0, < 10.0.19044.75482026-07-14

CVE-2026-50496 [HIGH] CWE-125 CVE-2026-50496: Out-of-bounds read in Windows Network Policy Server SNMP allows an unauthorized attacker to disclose Out-of-bounds read in Windows Network Policy Server SNMP allows an unauthorized attacker to disclose information over a network.

nvd

CVE-2025-47159P3HIGHCVSS 7.8≥ 10.0.19044.0, < 10.0.19044.60932025-07-08

CVE-2025-47159 [HIGH] CWE-693 CVE-2025-47159: Protection mechanism failure in Windows Virtualization-Based Security (VBS) Enclave allows an author Protection mechanism failure in Windows Virtualization-Based Security (VBS) Enclave allows an authorized attacker to elevate privileges locally.

nvd

CVE-2025-59511P3HIGHCVSS 7.8≥ 10.0.19044.0, < 10.0.19044.65752025-11-11

CVE-2025-59511 [HIGH] CWE-73 CVE-2025-59511: External control of file name or path in Windows WLAN Service allows an authorized attacker to eleva External control of file name or path in Windows WLAN Service allows an authorized attacker to elevate privileges locally.

nvd

CVE-2026-45607P3HIGHCVSS 7.8≥ 10.0.19044.0, < 10.0.19044.74172026-06-09

CVE-2026-45607 [HIGH] CWE-125 CVE-2026-45607: Out-of-bounds read in Windows Hyper-V allows an unauthorized attacker to execute code locally. Out-of-bounds read in Windows Hyper-V allows an unauthorized attacker to execute code locally.

nvd

CVE-2025-59514P3HIGHCVSS 7.8≥ 10.0.19044.0, < 10.0.19044.65752025-11-11

CVE-2025-59514 [HIGH] CWE-269 CVE-2025-59514: Improper privilege management in Microsoft Streaming Service allows an authorized attacker to elevat Improper privilege management in Microsoft Streaming Service allows an authorized attacker to elevate privileges locally.

nvd

CVE-2025-54111P3HIGHCVSS 7.8≥ 10.0.19044.0, < 10.0.19044.63322025-09-09

CVE-2025-54111 [HIGH] CWE-416 CVE-2025-54111: Use after free in Windows UI XAML Phone DatePickerFlyout allows an authorized attacker to elevate pr Use after free in Windows UI XAML Phone DatePickerFlyout allows an authorized attacker to elevate privileges locally.

nvd

CVE-2026-40404P3HIGHCVSS 7.8≥ 10.0.19044.0, < 10.0.19044.74172026-06-09

CVE-2026-40404 [HIGH] CWE-122 CVE-2026-40404: Windows Universal Disk Format File System Driver (UDFS) Elevation of Privilege Vulnerability Windows Universal Disk Format File System Driver (UDFS) Elevation of Privilege Vulnerability

nvd

CVE-2026-25175P3HIGHCVSS 7.8≥ 10.0.19044.0, < 10.0.19044.70582026-03-10

CVE-2026-25175 [HIGH] CWE-125 CVE-2026-25175: 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.

nvd

CVE-2025-49726P3HIGHCVSS 7.8≥ 10.0.19044.0, < 10.0.19044.60932025-07-08

CVE-2025-49726 [HIGH] CWE-416 CVE-2025-49726: 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.

nvd

CVE-2026-24290P3HIGHCVSS 7.8≥ 10.0.19044.0, < 10.0.19044.70582026-03-10

CVE-2026-24290 [HIGH] CWE-284 CVE-2026-24290: Improper access control in Windows Projected File System allows an authorized attacker to elevate pr Improper access control in Windows Projected File System allows an authorized attacker to elevate privileges locally.

nvd

CVE-2025-26687P3HIGHCVSS 7.5≥ 10.0.19044.0, < 10.0.19044.57372025-04-08

CVE-2025-26687 [HIGH] CWE-416 CVE-2025-26687: Use after free in Windows Win32K - GRFX allows an unauthorized attacker to elevate privileges over a Use after free in Windows Win32K - GRFX allows an unauthorized attacker to elevate privileges over a network.

nvd

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