Use After Free in Microsoft Windows 11 Version 23h2

CVE-2026-69740

Use after free in Windows Hello allows an authorized attacker to elevate privileges locally.

Vulnerability class: Use-After-Free

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-69740?
CVE-2026-69740 is a high-severity vulnerability in Microsoft Windows 11 Version 23h2, classified under Use After Free. CVSS score: 8.8/10. Published 2026-09-08.
How severe is CVE-2026-69740?
High severity. CVSS v3 base score is 8.8 out of 10.