CVE-2026-20804

high

Description

Incorrect privilege assignment in Windows Hello allows an unauthorized attacker to perform tampering locally.

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-20804

Details

Source: Mitre, NVD

Published: 2026-01-13

Updated: 2026-01-14

Risk Information

CVSS v2

Base Score: 6.6

Vector: CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:N

Severity: Medium

CVSS v3

Base Score: 7.7

Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Severity: High

EPSS

EPSS: 0.00043