CVE-2025-49677

Microsoft Brokering File System Elevation of Privilege Vulnerability

CVE-2025-49677 is fixed in 2 products on 1 platform, first by KB5062552, released July 8, 2025. It is not reported as exploited. Patch Radar priority: High.

High

CVSS

7.0

Important

Exploitation

None reported

Exploitation Less Likely

CISA KEV

Not listed

Not in the Known Exploited Vulnerabilities catalog

EPSS

0.0112

66th percentile

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

Where it's fixed

Product	Fix	Released
Microsoft
Windows 11 Version 22H2 for ARM64-based Systems	KB5062552	Jul 8, 2025
Windows 11 Version 22H2 for x64-based Systems	KB5062552	Jul 8, 2025

Details

Published
July 8, 2025
Weakness
Use After Free
Vendor advisory
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-49677

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