Severity by source
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
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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. …
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Recommended ActionAI
Begin within 24 hours by inventorying all Windows 11 and Windows Server 2025 systems (specifically versions 24H2, 25H2, 26H1) in your infrastructure. …
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Same weakness CWE-416 – Use After Free
View allSame technique Use After Free
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External POC / Exploit Code
Leaving vuln.today
EUVD-2026-44048
GHSA-hwpc-v7rx-8pcj