Elevation of Privilege in Microsoft Brokering File System
CVE-2026-25167

7.4HIGH

Key Information:

Vendor

Microsoft
Status
Windows 11 Version 24h2
Windows 11 Version 25h2
Windows 11 Version 26h1
Windows Server 2025
Vendor
CVE Published:
10 March 2026

What is CVE-2026-25167?

A vulnerability in Microsoft Brokering File System has been identified, allowing unauthorized users to gain elevated privileges locally through a use-after-free condition. This security flaw can lead to potential system compromise, making it essential for users to apply the latest security patches provided by Microsoft to mitigate risks.

Affected Version(s)

Windows 11 Version 24H2 ARM64-based Systems 10.0.26100.0 < 10.0.26100.8037

Windows 11 Version 25H2 10.0.26200.0 < 10.0.26200.8037

Windows 11 version 26H1 ARM64-based Systems 10.0.28000.0 < 10.0.28000.1719

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE...
vendor-advisorypatch

CVSS V3.1

Score:
7.4
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
High
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.