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CVE-2025-49677

HighPublished

Microsoft Brokering File System Elevation of Privilege Vulnerability

Published: Jul 8, 2025
Updated: Feb 13, 2026
Assigning CNA: microsoft
Evidence observed: Jul 16, 2025

Primary CVSS

7.0/ 10High

nvd · CVSS 3.1

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS probability estimate

1.0%

Low · next 30 days

Percentile: 60.0%
Model date: Sep 21, 2026

EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.

Summary

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

Sources

Microsoft Brokering File System Windows 11 Version 22H2 - Elevation of PrivilegeExploit
nu11secur1ty · windows · Jul 16, 2025

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