medium6.7
CVE-2026-20876
Heap-based buffer overflow in Windows Virtualization-Based Security (VBS) Enclave allows an authorized attacker to elevate privileges locally.
Impact
Heap-based buffer overflow in Windows Virtualization-Based Security (VBS) Enclave allows an authorized attacker to elevate privileges locally.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Microsoft | Windows 11 23h2 | before 10.0.22631.6491 |
| Microsoft | Windows 11 24h2 | before 10.0.26100.7623 |
| Microsoft | Windows 11 25h2 | before 10.0.26200.7623 |
| Microsoft | Windows Server 2022 23h2 | before 10.0.25398.2092 |
| Microsoft | Windows Server 2025 | before 10.0.26100.32230 |