high7.8
CVE-2026-20859
Use after free in Windows Kernel-Mode Drivers allows an authorized attacker to elevate privileges locally.
Impact
Use after free in Windows Kernel-Mode Drivers allows an authorized attacker to elevate privileges locally.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Microsoft | Windows 11 24h2 | before 10.0.26100.7623 |
| Microsoft | Windows 11 25h2 | before 10.0.26200.7623 |
| Microsoft | Windows Server 2025 | before 10.0.26100.32230 |