What is CVE-2026-25167?

CVE-2026-25167 is a high-severity vulnerability in Microsoft Windows 11 Version 24h2, classified under Use After Free. CVSS score: 7.4/10. Published 2026-03-10.

How severe is CVE-2026-25167?

High severity. CVSS v3 base score is 7.4 out of 10.

Use After Free in Microsoft Windows 11 Version 24h2

CVE-2026-25167

Use after free in Microsoft Brokering File System allows an unauthorized attacker to elevate privileges locally.

Vulnerability class: Use-After-Free

EPSS: 0.000 (14.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.4 (High). Vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C.

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
Microsoft Windows Server 2025 — versions 10.0.26100.0
Microsoft Windows Server 2025 (Server Core Installation) — versions 10.0.26100.0

Weakness classification (CWE)

CWE-416 — Use After Free

References

Microsoft Brokering File System Elevation of Privilege Vulnerability (vendor-advisory, patch)

Frequently asked questions

What is CVE-2026-25167?: CVE-2026-25167 is a high-severity vulnerability in Microsoft Windows 11 Version 24h2, classified under Use After Free. CVSS score: 7.4/10. Published 2026-03-10.
How severe is CVE-2026-25167?: High severity. CVSS v3 base score is 7.4 out of 10.