What is CVE-2026-50379?

CVE-2026-50379 is a high-severity vulnerability in Microsoft Windows 11 Version 24h2, classified under Concurrent Execution using Shared Resource with Improper Synchronization (Race Condition). CVSS score: 7.5/10. Published 2026-07-14.

How severe is CVE-2026-50379?

High severity. CVSS v3 base score is 7.5 out of 10.

Use After Free in Microsoft Windows 11 Version 24h2

CVE-2026-50379

Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Media allows an authorized attacker to elevate privileges over a network.

Vulnerability class: Race Condition

CVSS v3 metric

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

Affected products

Microsoft Windows 11 Version 24h2 — versions 10.0.26100.0
Microsoft Windows 11 Version 25h2 — versions 10.0.26200.0
Microsoft Windows 11 Version 26h1 — versions 10.0.28000.0

Weakness classification (CWE)

References

secure@microsoft.com (vendor-advisory, patch)

Frequently asked questions

What is CVE-2026-50379?: CVE-2026-50379 is a high-severity vulnerability in Microsoft Windows 11 Version 24h2, classified under Concurrent Execution using Shared Resource with Improper Synchronization (Race Condition). CVSS score: 7.5/10. Published 2026-07-14.
How severe is CVE-2026-50379?: High severity. CVSS v3 base score is 7.5 out of 10.