Known vulnerabilities in Microsoft Windows 10 Version 21H2
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CVE list
| CVE | Summary | Score | Published |
|---|---|---|---|
| CVE-2026-35416 | Access of resource using incompatible type ('type confusion') in Windows Ancillary Function Driver for WinSock allows an… | 7.0 High | May 12, 2026 |
| CVE-2026-34351 | Concurrent execution using shared resource with improper synchronization ('race condition') in Windows TCP/IP allows… | 7.8 High | May 12, 2026 |
| CVE-2026-34347 | Use after free in Windows Win32K - GRFX allows an authorized attacker to elevate privileges locally | 7.0 High | May 12, 2026 |
| CVE-2026-34345 | Access of resource using incompatible type ('type confusion') in Windows Ancillary Function Driver for WinSock allows an… | 7.0 High | May 12, 2026 |
| CVE-2026-34344 | Access of resource using incompatible type ('type confusion') in Windows Ancillary Function Driver for WinSock allows an… | 7.8 High | May 12, 2026 |
| CVE-2026-34342 | Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Print Spooler… | 7.0 High | May 12, 2026 |
| CVE-2026-34343 | Heap-based buffer overflow in Windows Application Identity (AppID) Subsystem allows an authorized attacker to elevate… | 7.8 High | May 12, 2026 |
| CVE-2026-34333 | Use after free in Windows Win32K - GRFX allows an authorized attacker to elevate privileges locally | 7.8 High | May 12, 2026 |
| CVE-2026-34330 | Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Win32K - GRFX… | 7.8 High | May 12, 2026 |
| CVE-2026-34331 | Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Win32K - GRFX… | 7.0 High | May 12, 2026 |
| CVE-2026-34329 | Heap-based buffer overflow in Windows Message Queuing allows an unauthorized attacker to execute code over an adjacent… | 8.8 High | May 12, 2026 |
| CVE-2026-33841 | Heap-based buffer overflow in Windows Kernel allows an authorized attacker to elevate privileges locally | 7.8 High | May 12, 2026 |
| CVE-2026-33839 | Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Win32K - GRFX… | 7.0 High | May 12, 2026 |
| CVE-2026-33834 | Improper access control in Windows Event Logging Service allows an authorized attacker to elevate privileges locally | 7.8 High | May 12, 2026 |
| CVE-2026-21530 | Double free in Windows Rich Text Edit allows an authorized attacker to elevate privileges locally | 6.7 Medium | May 12, 2026 |
| CVE-2026-32214 | Improper access control in Universal Plug and Play (upnp.dll) allows an authorized attacker to disclose information… | 5.5 Medium | Apr 14, 2026 |
| CVE-2026-33829 | Exposure of sensitive information to an unauthorized actor in Windows Snipping Tool allows an unauthorized attacker to… | 4.3 Medium | Apr 14, 2026 |
| CVE-2026-33824 | Exploited Microsoft Internet Key Exchange (IKE) Service Extensions Double Free Vulnerability | 9.8 Critical | Apr 14, 2026 |
| CVE-2026-33827 | Concurrent execution using shared resource with improper synchronization ('race condition') in Windows TCP/IP allows… | 8.1 High | Apr 14, 2026 |
| CVE-2026-33104 | Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Win32K - GRFX… | 7.0 High | Apr 14, 2026 |
| CVE-2026-33100 | Use after free in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges… | 7.0 High | Apr 14, 2026 |
| CVE-2026-33099 | Use after free in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges… | 7.0 High | Apr 14, 2026 |
| CVE-2026-32225 | Improper neutralization of special elements used in a command ('command injection') in Windows Shell allows an… | 8.8 High | Apr 14, 2026 |
| CVE-2026-32164 | Concurrent execution using shared resource with improper synchronization ('race condition') in Windows User Interface… | 7.8 High | Apr 14, 2026 |
| CVE-2026-32162 | Acceptance of extraneous untrusted data with trusted data in Windows COM allows an unauthorized attacker to elevate… | 8.4 High | Apr 14, 2026 |
Other Microsoft products
Windows Server 2019 5745
Windows Server 2019 (Server Core installation) 5648
Windows 10 Version 1809 5349
Windows Server 2022 5112
Windows Server 2016 5051
Windows Server 2016 (Server Core installation) 4847
Windows 10 Version 1607 4535
Windows Server 2012 R2 4103
Windows 10 Version 22H2 4041
Windows Server 2012 R2 (Server Core installation) 3958
Windows Server 2012 3865
Windows Server 2012 (Server Core installation) 3732