What is CVE-2026-69740?

CVE-2026-69740 is a high-severity vulnerability in Microsoft Windows 11 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.

Use After Free in Microsoft Windows 11 23h2

CVE-2026-69740

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

Vulnerability class: Use-After-Free

Published 2026-09-08 · last modified 2026-09-22.

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.

EPSS exploit prediction

EPSS: 0.003 (25.5th percentile), scored 2026-10-24.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 25th percentile — 25.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000

Affected products

Weakness classification (CWE)

CWE-416 — Use After Free

References

Windows Hello Elevation of Privilege Vulnerability (vendor-advisory, Patch, patch, Vendor Advisory)

Frequently asked questions

What is CVE-2026-69740?: CVE-2026-69740 is a high-severity vulnerability in Microsoft Windows 11 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.