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AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Primary rating from Vendor (microsoft) · only source for this CVE.
CVSS VectorVendor: microsoft
Lifecycle Timeline
2DescriptionCVE.org
Use after free in Windows Brokering File System allows an authorized attacker to elevate privileges locally.
AnalysisAI
Local privilege escalation in the Windows Brokering File System component affects Windows 11 (24H2, 25H2, 26H1) and Windows Server 2025, where a use-after-free memory corruption (CWE-416) lets an already-authenticated local user elevate to higher privileges. Microsoft rates it CVSS 7.8 with full confidentiality, integrity, and availability impact, and has released a patch. There is no public exploit identified at time of analysis and it is not listed in CISA KEV.
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Same weakness CWE-416 – Use After Free
View allSame technique Denial Of Service
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External POC / Exploit Code
Leaving vuln.today
EUVD-2026-44048
GHSA-hwpc-v7rx-8pcj