What is CVE-2025-49677?

CVE-2025-49677 is a security advisory published by Microsoft Security Response Center (MSRC) with High severity. Microsoft Brokering File System Elevation of Privilege Vulnerability

Which CVE IDs does CVE-2025-49677 cover?

CVE-2025-49677 covers the following CVE IDs: CVE-2025-49677. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of CVE-2025-49677?

CVE-2025-49677 has a CVSS v3 base score of 7.0, published by Microsoft Security Response Center (MSRC).

Which products are affected by CVE-2025-49677?

CVE-2025-49677 affects 2 products, including: Windows 11 Version 22H2 for ARM64-based Systems; Windows 11 Version 22H2 for x64-based Systems.

CVE-2025-49677HighCVSS 7.0

Microsoft Brokering File System Elevation of Privilege Vulnerability

Vendor

Microsoft Security Response Center (MSRC)

Published

July 8, 2025

Last Modified

—

🔗 CVE IDs covered (1)

CVE-2025-49677 →

📋 Description

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

🎯 Affected products2

Windows 11 Version 22H2 for ARM64-based Systems
Windows 11 Version 22H2 for x64-based Systems

✅ Remediation

KB5062552 (Security Update) — fixed build 10.0.22621.5624

🔗 References (3)

advisoryhttps://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-49677
patchhttps://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB5062552
referencehttps://support.microsoft.com/help/5062552