Known vulnerabilities in Microsoft Windows 10 Version 21H2
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CVE list
| CVE | Summary | Score | Published |
|---|---|---|---|
| CVE-2026-62727 | Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Telephony Service… | 7.0 High | Aug 19, 2026 |
| CVE-2026-62738 | Out-of-bounds read in Windows Management Instrumentation allows an authorized attacker to disclose information locally | 5.5 Medium | Aug 11, 2026 |
| CVE-2026-65798 | Numeric truncation error in Windows DNS allows an authorized attacker to elevate privileges locally | 6.7 Medium | Aug 11, 2026 |
| CVE-2026-65797 | Numeric truncation error in Windows DNS allows an authorized attacker to elevate privileges locally | 6.7 Medium | Aug 11, 2026 |
| CVE-2026-65799 | Integer overflow or wraparound in Windows DNS allows an authorized attacker to elevate privileges locally | 6.7 Medium | Aug 11, 2026 |
| CVE-2026-65794 | Buffer over-read in Windows SMB Client allows an unauthorized attacker to disclose information over a network | 6.5 Medium | Aug 11, 2026 |
| CVE-2026-65795 | Relative path traversal in Windows DNS allows an authorized attacker to elevate privileges locally | 6.7 Medium | Aug 11, 2026 |
| CVE-2026-65790 | Heap-based buffer overflow in Windows Message Queuing allows an authorized attacker to elevate privileges locally | 7.8 High | Aug 11, 2026 |
| CVE-2026-65775 | Use after free in Windows Win32K allows an authorized attacker to elevate privileges locally | 7.8 High | Aug 11, 2026 |
| CVE-2026-65773 | Improper access control in Windows Kernel allows an authorized attacker to elevate privileges locally | 7.8 High | Aug 11, 2026 |
| CVE-2026-65774 | Heap-based buffer overflow in Windows Installer allows an authorized attacker to elevate privileges locally | 7.8 High | Aug 11, 2026 |
| CVE-2026-62887 | Out-of-bounds read in Windows NTFS allows an authorized attacker to disclose information locally | 5.5 Medium | Aug 11, 2026 |
| CVE-2026-62888 | Use after free in Windows DWM Core Library allows an authorized attacker to elevate privileges locally | 7.8 High | Aug 11, 2026 |
| CVE-2026-62885 | Heap-based buffer overflow in Windows Win32K allows an authorized attacker to elevate privileges locally | 7.8 High | Aug 11, 2026 |
| CVE-2026-62883 | Numeric truncation error in Windows DNS allows an authorized attacker to elevate privileges locally | 6.7 Medium | Aug 11, 2026 |
| CVE-2026-62881 | Numeric truncation error in Windows DNS allows an authorized attacker to elevate privileges locally | 6.7 Medium | Aug 11, 2026 |
| CVE-2026-62880 | Out-of-bounds read in Windows NTFS allows an authorized attacker to elevate privileges locally | 7.8 High | Aug 11, 2026 |
| CVE-2026-62822 | Integer overflow or wraparound in Windows GDI+ allows an unauthorized attacker to execute code over a network | 8.8 High | Aug 11, 2026 |
| CVE-2026-62832 | Improper link resolution before file access ('link following') in Windows User Profile Service allows an authorized… | 7.8 High | Aug 11, 2026 |
| CVE-2026-62790 | Heap-based buffer overflow in Windows SMB Server allows an authorized attacker to execute code over a network | 8.8 High | Aug 11, 2026 |
| CVE-2026-62793 | Buffer over-read in Windows NTFS allows an authorized attacker to disclose information locally | 5.5 Medium | Aug 11, 2026 |
| CVE-2026-62786 | Out-of-bounds read in Windows Win32K allows an authorized attacker to disclose information locally | 5.5 Medium | Aug 11, 2026 |
| CVE-2026-62800 | Heap-based buffer overflow in Windows SMB Server allows an authorized attacker to execute code over a network | 8.8 High | Aug 11, 2026 |
| CVE-2026-62781 | Heap-based buffer overflow in RPC Runtime allows an unauthorized attacker to execute code over a network | 8.1 High | Aug 11, 2026 |
| CVE-2026-62782 | Out-of-bounds read in Windows SMB Client allows an unauthorized attacker to disclose information over a network | 6.5 Medium | Aug 11, 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