CVE-2026-20859

CVSS Score & Metrics

Base Score

7.8 / 10

Vector String

                                        CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H                                    

Use after free in Windows Kernel-Mode Drivers allows an authorized attacker to elevate privileges locally.

Published Date

January 13, 2026

Last Modified

January 15, 2026

CWE ID

CWE-416

Source

NVD

Vendor

microsoft

Product

windows_11_24h2