Known vulnerabilities in Microsoft Windows 10 Version 21H2
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CVE list
| CVE | Summary | Score | Published |
|---|---|---|---|
| CVE-2026-20812 | Improper input validation in Windows LDAP - Lightweight Directory Access Protocol allows an authorized attacker to… | 6.5 Medium | Jan 13, 2026 |
| CVE-2026-20810 | Free of memory not on the heap in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate… | 7.8 High | Jan 13, 2026 |
| CVE-2026-20809 | Time-of-check time-of-use (toctou) race condition in Windows Kernel Memory allows an authorized attacker to elevate… | 7.8 High | Jan 13, 2026 |
| CVE-2026-20805 | Exploited Microsoft Windows Information Disclosure Vulnerability | 5.5 Medium | Jan 13, 2026 |
| CVE-2026-20804 | Incorrect privilege assignment in Windows Hello allows an unauthorized attacker to perform tampering locally | 7.7 High | Jan 13, 2026 |
| CVE-2026-21265 | Windows Secure Boot stores Microsoft certificates in the UEFI KEK and DB | 6.4 Medium | Jan 13, 2026 |
| CVE-2026-20962 | Use of uninitialized resource in Dynamic Root of Trust for Measurement (DRTM) allows an authorized attacker to… | 4.4 Medium | Jan 13, 2026 |
| CVE-2025-62221 | Exploited Microsoft Windows Use After Free Vulnerability | 7.8 High | Dec 9, 2025 |
| CVE-2025-54100 | Improper neutralization of special elements used in a command ('command injection') in Windows PowerShell allows an… | 7.8 High | Dec 9, 2025 |
| CVE-2025-64680 | Heap-based buffer overflow in Windows DWM Core Library allows an authorized attacker to elevate privileges locally | 7.8 High | Dec 9, 2025 |
| CVE-2025-64679 | Heap-based buffer overflow in Windows DWM Core Library allows an authorized attacker to elevate privileges locally | 7.8 High | Dec 9, 2025 |
| CVE-2025-64678 | Heap-based buffer overflow in Windows Routing and Remote Access Service (RRAS) allows an unauthorized attacker to… | 8.8 High | Dec 9, 2025 |
| CVE-2025-64661 | Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Shell allows an… | 7.8 High | Dec 9, 2025 |
| CVE-2025-62565 | Use after free in Windows Shell allows an authorized attacker to elevate privileges locally | 7.3 High | Dec 9, 2025 |
| CVE-2025-62567 | Integer underflow (wrap or wraparound) in Windows Hyper-V allows an authorized attacker to deny service over a network | 5.3 Medium | Dec 9, 2025 |
| CVE-2025-62474 | Improper access control in Windows Remote Access Connection Manager allows an authorized attacker to elevate… | 7.8 High | Dec 9, 2025 |
| CVE-2025-62467 | Integer overflow or wraparound in Windows Projected File System allows an authorized attacker to elevate privileges… | 7.8 High | Dec 9, 2025 |
| CVE-2025-55233 | Out-of-bounds read in Windows Projected File System allows an authorized attacker to elevate privileges locally | 7.8 High | Dec 9, 2025 |
| CVE-2025-62464 | Buffer over-read in Windows Projected File System allows an authorized attacker to elevate privileges locally | 7.8 High | Dec 9, 2025 |
| CVE-2025-62463 | Null pointer dereference in Windows DirectX allows an authorized attacker to deny service locally | 6.5 Medium | Dec 9, 2025 |
| CVE-2025-62462 | Buffer over-read in Windows Projected File System allows an authorized attacker to elevate privileges locally | 7.8 High | Dec 9, 2025 |
| CVE-2025-62461 | Buffer over-read in Windows Projected File System Filter Driver allows an authorized attacker to elevate privileges… | 7.8 High | Dec 9, 2025 |
| CVE-2025-62455 | Improper input validation in Windows Message Queuing allows an authorized attacker to elevate privileges locally | 7.8 High | Dec 9, 2025 |
| CVE-2025-59517 | Improper access control in Windows Storage VSP Driver allows an authorized attacker to elevate privileges locally | 7.8 High | Dec 9, 2025 |
| CVE-2025-59516 | Missing authentication for critical function in Windows Storage VSP Driver allows an authorized attacker to elevate… | 7.8 High | Dec 9, 2025 |
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