Vulnerability Description
Use after free in Windows Common Log File System Driver allows an authorized attacker to elevate privileges locally.
CVSS Score
7.8
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | Windows 11 24H2 | < 10.0.26100.8655 |
| Microsoft | Windows 11 25H2 | < 10.0.26200.8655 |
| Microsoft | Windows 11 26H1 | < 10.0.28000.2269 |
| Microsoft | Windows Server 2025 | < 10.0.26100.32995 |
Related Weaknesses (CWE)
References
FAQ
What is CVE-2026-44809?
CVE-2026-44809 is a vulnerability with a CVSS score of 7.8 (HIGH). Use after free in Windows Common Log File System Driver allows an authorized attacker to elevate privileges locally.
How severe is CVE-2026-44809?
CVE-2026-44809 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-44809?
Check the references section above for vendor advisories and patch information. Affected products include: Microsoft Windows 11 24H2, Microsoft Windows 11 25H2, Microsoft Windows 11 26H1, Microsoft Windows Server 2025.