Vulnerability in Microsoft Windows 10 Version 21h2

CVE-2026-69710

Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Hello allows an authorized attacker to elevate privileges locally.

Vulnerability class: Race Condition

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-69710?
CVE-2026-69710 is a high-severity vulnerability in Microsoft Windows 10 Version 21h2, classified under Concurrent Execution using Shared Resource with Improper Synchronization (Race Condition). CVSS score: 7.5/10. Published 2026-09-08.
How severe is CVE-2026-69710?
High severity. CVSS v3 base score is 7.5 out of 10.