CVE-2026-96973 · Infrastructure
NO FIX YET
Microsoft/NVD describe a use-after-free in the Windows Encrypting File System (EFS) that lets an authorized local attacker elevate privileges (CVSS 7.0, AV:L/AC:H/PR:L). No exploitation or public PoC is reported in the sources. Affected builds and the fixing update are not yet confirmed.
first public Nov 10, 2026 · 2 sources
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Any Windows machine that uses EFS and where untrusted or low-privileged users can log on locally is in scope. The sources do not list affected Windows builds or whether EFS must be actively used. unknown
Not affected if no-untrusted-local-users
Who cares efs, local-privilege-escalation, windows
Unknown from the sources.
Use after free in Windows Encrypting File System (EFS) allows an authorized attacker to elevate privileges locally.
This page as .md · .json · CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD data is provided by NIST and is public domain. Posts quoted belong to their authors.
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