Windows CVE-2026-20804
HIGHCVSS VectorNVD
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Lifecycle Timeline
2DescriptionNVD
Incorrect privilege assignment in Windows Hello allows an unauthorized attacker to perform tampering locally.
AnalysisAI
Windows Hello privilege elevation flaw in Windows 10 21h2, Windows Server 2019, 2022, and 2022 23h2 enables local attackers to modify system data without authorization. The vulnerability stems from improper privilege assignment that bypasses access controls, allowing an unauthenticated attacker with local access to tamper with protected resources. …
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RemediationAI
Within 7 days: Identify all affected systems and apply vendor patches promptly. Monitor vendor channels for patch availability.
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