Known vulnerabilities in Microsoft Windows 10 Version 21H2
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CVE list
| CVE | Summary | Score | Published |
|---|---|---|---|
| CVE-2026-83583 | Improper access control in Windows Geotag Broker allows an authorized attacker to elevate privileges locally | 7.8 High | Oct 13, 2026 |
| CVE-2026-83584 | Use after free in Windows Smart Card allows an authorized attacker to elevate privileges locally | 7.0 High | Oct 13, 2026 |
| CVE-2026-69633 | Heap-based buffer overflow in Windows Update allows an authorized attacker to elevate privileges locally | 7.8 High | Oct 13, 2026 |
| CVE-2026-83500 | Url redirection to untrusted site ('open redirect') in Windows BitLocker allows an unauthorized attacker to bypass a… | 6.1 Medium | Oct 13, 2026 |
| CVE-2026-81964 | Use of hard-coded credentials in Windows Update Orchestrator Service allows an authorized attacker to bypass a… | 5.5 Medium | Oct 13, 2026 |
| CVE-2026-69387 | Use after free in Windows Error Reporting allows an authorized attacker to elevate privileges locally | 7.0 High | Oct 13, 2026 |
| CVE-2026-69721 | Out-of-bounds read in Windows iSCSI allows an authorized attacker to disclose information locally | 5.5 Medium | Oct 13, 2026 |
| CVE-2026-69644 | Exposure of sensitive system information to an unauthorized control sphere in Windows iSCSI allows an authorized… | 5.5 Medium | Oct 13, 2026 |
| CVE-2026-69883 | Use after free in Windows iSCSI allows an unauthorized attacker to execute code over a network | 9.8 Critical | Oct 13, 2026 |
| CVE-2026-69354 | Heap-based buffer overflow in Windows Error Reporting allows an authorized attacker to elevate privileges locally | 7.8 High | Oct 13, 2026 |
| CVE-2026-70580 | Missing authentication for critical function in Windows Credential Guard allows an authorized attacker to perform… | 8.8 High | Oct 13, 2026 |
| CVE-2026-69634 | Heap-based buffer overflow in Windows iSCSI allows an unauthorized attacker to execute code over a network | 9.8 Critical | Oct 13, 2026 |
| CVE-2026-69705 | Out-of-bounds write in Windows iSCSI allows an unauthorized attacker to execute code over a network | 9.8 Critical | Oct 13, 2026 |
| CVE-2026-68836 | Heap-based buffer overflow in Windows kernel32.dll allows an authorized attacker to elevate privileges locally | 7.8 High | Oct 13, 2026 |
| CVE-2026-69521 | Integer overflow or wraparound in Windows iSCSI allows an unauthorized attacker to execute code over a network | 8.8 High | Oct 13, 2026 |
| CVE-2026-70255 | Heap-based buffer overflow in Desktop Window Manager allows an authorized attacker to elevate privileges locally | 7.8 High | Oct 13, 2026 |
| CVE-2026-70252 | Use after free in Virtual Hard Disk (VHD) Miniport Driver allows an authorized attacker to elevate privileges locally | 7.0 High | Oct 13, 2026 |
| CVE-2026-70278 | Heap-based buffer overflow in Microsoft Windows Media Foundation allows an authorized attacker to elevate privileges… | 7.8 High | Oct 13, 2026 |
| CVE-2026-70271 | Use after free in Windows Win32 Kernel Subsystem allows an authorized attacker to elevate privileges locally | 7.0 High | Oct 13, 2026 |
| CVE-2026-70280 | Incorrect authorization in Windows Hello allows an authorized attacker to bypass a security feature locally | 4.4 Medium | Oct 13, 2026 |
| CVE-2026-70272 | Use after free in Windows Installer allows an authorized attacker to elevate privileges locally | 7.0 High | Oct 13, 2026 |
| CVE-2026-70284 | Use of uninitialized resource in Windows Win32 Kernel Subsystem allows an authorized attacker to disclose information… | 5.5 Medium | Oct 13, 2026 |
| CVE-2026-70285 | Heap-based buffer overflow in Windows Win32 Kernel Subsystem allows an authorized attacker to elevate privileges locally | 7.8 High | Oct 13, 2026 |
| CVE-2026-70234 | Buffer over-read in Desktop Window Manager allows an authorized attacker to disclose information locally | 5.5 Medium | Oct 13, 2026 |
| CVE-2026-70223 | Use after free in Windows Console Driver allows an authorized attacker to elevate privileges locally | 7.0 High | Oct 13, 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