CVE-2026-88239 · Infrastructure
NO FIX YET
A heap-based buffer overflow in the Windows Biometric Service lets a user who already has an account on the machine run code with higher privileges. The sources report a CVSS score of 7.8 but do not describe the exploit path further.
first public Nov 10, 2026 · 1 source
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Machines running the Windows Biometric Service, which handles fingerprint and face sign-in on Windows. The sources do not say which Windows versions are affected or whether the service must be enabled, so the unknown is left as is. An attacker needs an authorized local account first, so systems without untrusted local users carry less risk.
Not affected if no-untrusted-local-users
Who cares biometrics, windows
Unknown from the sources. In the analyst’s queue.
No fix yet, per the sources.
Heap-based buffer overflow in Windows Biometric Service allows an authorized attacker to elevate privileges locally.
This page as .md · .json · CVSS:3.1/AV:L/AC:L/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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