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7.4
Microsoft Brokering File System Privilege Elevation
CVE-2026-25167
Summary
A vulnerability in the Microsoft Brokering File System allows an attacker with local access to gain more privileges than intended. This could lead to unauthorized changes to system settings or data. To protect your system, ensure you have the latest updates installed and follow security best practices for file system access.
What to do
No fix is available yet. Check with your software vendor for updates.
Affected software
| Vendor | Product | Affected versions | Fix available |
|---|---|---|---|
| microsoft | windows_11_24h2 | <= 10.0.26100.7979 | – |
| microsoft | windows_11_24h2 | <= 10.0.26100.7979 | – |
| microsoft | windows_11_25h2 | <= 10.0.26200.7979 | – |
| microsoft | windows_11_25h2 | <= 10.0.26200.7979 | – |
| microsoft | windows_11_26h1 | <= 10.0.28000.1719 | – |
| microsoft | windows_11_26h1 | <= 10.0.28000.1719 | – |
| microsoft | windows_server_2025 | <= 10.0.26100.32463 | – |
Original title
Use after free in Microsoft Brokering File System allows an unauthorized attacker to elevate privileges locally.
Original description
Use after free in Microsoft Brokering File System allows an unauthorized attacker to elevate privileges locally.
nvd CVSS3.1
7.4
Vulnerability type
CWE-416
Use After Free
Published: 10 Mar 2026 · Updated: 14 Mar 2026 · First seen: 11 Mar 2026