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Windows 10 21h2

windows_10_21h2

Vendor: Microsoft • 2,027 CVEs

CVEs (2,027)

CVE
VENDORS
PRODUCTS
UPDATED
PUBLISHED
CVSS
1Microsoft
11Windows 10 1809
Windows 10 21h2Windows 10 22h2+8 more
Apr 20, 2026
Apr 14, 2026
N/A· v4
7.8 HIGH· v3
N/A· v2
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Push Notifications allows an authorized attacker to elevate privileges locally.
1Microsoft
11Windows 10 1809
Windows 10 21h2Windows 10 22h2+8 more
Apr 20, 2026
Apr 14, 2026
N/A· v4
7.8 HIGH· v3
N/A· v2
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Push Notifications allows an authorized attacker to elevate privileges locally.
1Microsoft
11Windows 10 1809
Windows 10 21h2Windows 10 22h2+8 more
Apr 20, 2026
Apr 14, 2026
N/A· v4
7.8 HIGH· v3
N/A· v2
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Push Notifications allows an authorized attacker to elevate privileges locally.
1Microsoft
15Remote Desktop Client
Windows 10 1607Windows 10 1809+12 more
May 7, 2026
Apr 14, 2026
N/A· v4
8.8 HIGH· v3
N/A· v2
Use after free in Remote Desktop Client allows an unauthorized attacker to execute code over a network.
1Microsoft
14Windows 10 1607
Windows 10 1809Windows 10 21h2+11 more
Apr 23, 2026
Apr 14, 2026
N/A· v4
7.4 HIGH· v3
N/A· v2
Use after free in Windows Universal Plug and Play (UPnP) Device Host allows an unauthorized attacker to execute code locally.
1Microsoft
8Windows 10 21h2
Windows 10 22h2Windows 11 23h2+5 more
Apr 21, 2026
Apr 14, 2026
N/A· v4
7.8 HIGH· v3
N/A· v2
Use after free in Desktop Window Manager allows an authorized attacker to elevate privileges locally.
1Microsoft
7Windows 10 1809
Windows 10 21h2Windows 10 22h2+4 more
Apr 20, 2026
Apr 14, 2026
N/A· v4
7.8 HIGH· v3
N/A· v2
Use after free in Microsoft Windows Speech allows an authorized attacker to elevate privileges locally.
1Microsoft
14Windows 10 1607
Windows 10 1809Windows 10 21h2+11 more
Apr 20, 2026
Apr 14, 2026
N/A· v4
6.5 MEDIUM· v3
N/A· v2
Exposure of sensitive information to an unauthorized actor in Windows Shell allows an authorized attacker to disclose information over a network.
1Microsoft
14Windows 10 1607
Windows 10 1809Windows 10 21h2+11 more
Apr 20, 2026
Apr 14, 2026
N/A· v4
7.0 HIGH· v3
N/A· v2
Concurrent execution using shared resource with improper synchronization ('race condition') in Function Discovery Service (fdwsd.dll) allows an authorized attacker to elevate privileges locally.
1Microsoft
13Windows 10 1607
Windows 10 1809Windows 10 21h2+10 more
Apr 20, 2026
Apr 14, 2026
N/A· v4
7.3 HIGH· v3
N/A· v2
Improper input validation in Windows Hyper-V allows an authorized attacker to execute code locally.
1Microsoft
14Windows 10 1607
Windows 10 1809Windows 10 21h2+11 more
Apr 20, 2026
Apr 14, 2026
N/A· v4
7.0 HIGH· v3
N/A· v2
Concurrent execution using shared resource with improper synchronization ('race condition') in Function Discovery Service (fdwsd.dll) allows an authorized attacker to elevate privileges locally.
1Microsoft
13Windows 10 1607
Windows 10 1809Windows 10 21h2+10 more
Apr 21, 2026
Apr 14, 2026
N/A· v4
7.0 HIGH· v3
N/A· v2
Concurrent execution using shared resource with improper synchronization ('race condition') in Microsoft Brokering File System allows an unauthorized attacker to elevate privileges locally.
1Microsoft
13Windows 10 1607
Windows 10 1809Windows 10 21h2+10 more
Apr 21, 2026
Apr 14, 2026
N/A· v4
7.0 HIGH· v3
N/A· v2
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Speech Brokered Api allows an authorized attacker to elevate privileges locally.
1Microsoft
13Windows 10 1607
Windows 10 1809Windows 10 21h2+10 more
Apr 21, 2026
Apr 14, 2026
N/A· v4
7.8 HIGH· v3
N/A· v2
Use after free in Windows Speech Brokered Api allows an authorized attacker to elevate privileges locally.
1Microsoft
11Windows 10 1809
Windows 10 21h2Windows 10 22h2+8 more
Apr 21, 2026
Apr 14, 2026
N/A· v4
5.7 MEDIUM· v3
N/A· v2
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Biometric Service allows an unauthorized attacker to bypass a security feature with a physical attack.
1Microsoft
14Windows 10 1607
Windows 10 1809Windows 10 21h2+11 more
Apr 21, 2026
Apr 14, 2026
N/A· v4
7.0 HIGH· v3
N/A· v2
Heap-based buffer overflow in Function Discovery Service (fdwsd.dll) allows an authorized attacker to elevate privileges locally.
1Microsoft
14Windows 10 1607
Windows 10 1809Windows 10 21h2+11 more
Apr 21, 2026
Apr 14, 2026
N/A· v4
7.0 HIGH· v3
N/A· v2
Concurrent execution using shared resource with improper synchronization ('race condition') in Function Discovery Service (fdwsd.dll) allows an authorized attacker to elevate privileges locally.
1Microsoft
13Windows 10 1607
Windows 10 1809Windows 10 21h2+10 more
Apr 21, 2026
Apr 14, 2026
N/A· v4
5.5 MEDIUM· v3
N/A· v2
Exposure of sensitive information to an unauthorized actor in Windows Remote Procedure Call allows an authorized attacker to disclose information locally.
1Microsoft
14Windows 10 1607
Windows 10 1809Windows 10 21h2+11 more
Apr 21, 2026
Apr 14, 2026
N/A· v4
5.5 MEDIUM· v3
N/A· v2
Exposure of sensitive information to an unauthorized actor in Windows File Explorer allows an authorized attacker to disclose information locally.
1Microsoft
14Windows 10 1607
Windows 10 1809Windows 10 21h2+11 more
Apr 21, 2026
Apr 14, 2026
N/A· v4
7.0 HIGH· v3
N/A· v2
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows SSDP Service allows an authorized attacker to elevate privileges locally.