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CVE-2026-27928

Windows Hello Security Feature Bypass Vulnerability

CVSS 8.7 HIGHEPSS 0.4%CWE-20
Improper input validation in Windows Hello allows an unauthorized attacker to bypass a security feature over a network.
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N/E:U/RL:O/RC:C
Affected products
Microsoft · Windows Server 2016Microsoft · Windows Server 2016 (Server Core installation)Microsoft · Windows Server 2019Microsoft · Windows Server 2019 (Server Core installation)Microsoft · Windows Server 2022Microsoft · Windows Server 2022, 23H2 Edition (Server Core installation)Microsoft · Windows Server 2025Microsoft · Windows Server 2025 (Server Core installation)

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References
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-27928