CVE-2025-48004
Microsoft Brokering File System Elevation of Privilege Vulnerability
CVE-2025-48004 is fixed in 11 products on 1 platform, first by KB5066793, released October 14, 2025. It is not reported as exploited, but the vendor rates exploitation more likely. Patch Radar priority: Urgent.
Urgent
CVSS
7.4
Important
Exploitation
More likely
Vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0223
82nd percentile
<p>Use after free in Microsoft Brokering File System allows an unauthorized attacker to elevate privileges locally.</p>
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Microsoft | |||
| Windows 11 Version 22H2 for ARM64-based Systems | KB5066793 | Oct 14, 2025 | |
| Windows 11 Version 22H2 for x64-based Systems | KB5066793 | Oct 14, 2025 | |
| Windows 11 Version 23H2 for ARM64-based Systems | KB5066793 | Oct 14, 2025 | |
| Windows 11 Version 23H2 for x64-based Systems | KB5066793 | Oct 14, 2025 | |
| Windows 11 Version 24H2 for ARM64-based Systems | KB5066835 | Oct 14, 2025 | |
| Windows 11 Version 24H2 for x64-based Systems | KB5066835 | Oct 14, 2025 | |
| Windows 11 Version 25H2 for ARM64-based Systems | KB5066835 | Oct 14, 2025 | |
| Windows 11 Version 25H2 for x64-based Systems | KB5066835 | Oct 14, 2025 | |
| Windows Server 2022, 23H2 Edition (Server Core installation) | 25398.1913 | KB5066780 | Oct 14, 2025 |
| Windows Server 2025 | KB5066835 | Oct 14, 2025 | |
| Windows Server 2025 (Server Core installation) | KB5066835 | Oct 14, 2025 | |
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