What is CVE-2026-70097?

CVE-2026-70097 is a medium-severity vulnerability in Microsoft Windows 11 Version 24h2, classified under Concurrent Execution using Shared Resource with Improper Synchronization (Race Condition). CVSS score: 5.6/10. Published 2026-10-13.

How severe is CVE-2026-70097?

Medium severity. CVSS v3 base score is 5.6 out of 10.

Vulnerability in Microsoft Windows 11 Version 24h2

CVE-2026-70097

Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Virtualization-Based Security (VBS) Enclave allows an authorized attacker to perform spoofing locally.

Vulnerability class: Race Condition

Published 2026-10-13 · last modified 2026-10-13.

CVSS v3 metric

CVSS v3 base score 5.6 (Medium). Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:N/I:H/A:N.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Weakness classification (CWE)

CWE-362 — Concurrent Execution using Shared Resource with Improper Synchronization (Race Condition)

References

msrc.microsoft.com/update-guide/vulnerability/CVE-2026-70097 (vendor-advisory, patch)

Frequently asked questions

What is CVE-2026-70097?: CVE-2026-70097 is a medium-severity vulnerability in Microsoft Windows 11 Version 24h2, classified under Concurrent Execution using Shared Resource with Improper Synchronization (Race Condition). CVSS score: 5.6/10. Published 2026-10-13.
How severe is CVE-2026-70097?: Medium severity. CVSS v3 base score is 5.6 out of 10.