VDB
CVE-2026-44809
CVE-2026-44809
PUBLISHED
CVSS 7.8 HIGH
Reported by microsoft · Published June 9, 2026
Use after free in Windows Common Log File System Driver allows an authorized attacker to elevate privileges locally.
Risk Scores
CVSS 3.1
7.8
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | Windows 11 Version 24H2 | 10.0.26100.0 |
| Microsoft | Windows 11 Version 25H2 | 10.0.26200.0 |
| Microsoft | Windows 11 version 26H1 | 10.0.28000.0 |
| Microsoft | Windows Server 2025 | 10.0.26100.0 |
| Microsoft | Windows Server 2025 (Server Core installation) | 10.0.26100.0 |
| microsoft | windows_11_24H2 | 10.0.26100.0, 10.0.26100.0, 10.0.26100.0 |
| Microsoft | Windows 11 Version 25H2 | 10.0.26200.0, 10.0.26200.0, 10.0.26200.0 |
| microsoft | windows_server_2025 | 10.0.26100.0, 10.0.26100.0, 10.0.26100.0 |
| microsoft | windows_11_25H2 | 10.0.26200.0, 10.0.26200.0, 10.0.26200.0 |
| Microsoft | Windows 11 Version 24H2 | 10.0.26100.0, 10.0.26100.0, 10.0.26100.0 |
| Microsoft | Windows Server 2025 (Server Core installation) | 10.0.26100.0, 10.0.26100.0, 10.0.26100.0 |
| microsoft | windows_11_26H1 | 10.0.28000.0, 10.0.28000.0, 10.0.28000.0 |
| Microsoft | Windows 11 version 26H1 | 10.0.28000.0, 10.0.28000.0, 10.0.28000.0 |
| Microsoft | Windows Server 2025 | 10.0.26100.0, 10.0.26100.0, 10.0.26100.0 |
Timeline
- Jun 9, 2026 CVE Published
- Jun 10, 2026 Coalition ESS Score
- Jun 10, 2026 Security Advisory
- Jun 10, 2026 Security Advisory
References
- Windows Common Log File System Driver Elevation of Privilege Vulnerability vendor-advisorypatch