Windows 11 24h2
CVE-2026-20852
HIGH
Severity by source
AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Primary rating from Vendor (microsoft) · only source for this CVE.
CVSS VectorVendor: microsoft
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Lifecycle Timeline
2DescriptionCVE.org
Incorrect privilege assignment in Windows Hello allows an unauthorized attacker to perform tampering locally.
AnalysisAI
Windows Hello privilege escalation on Windows 10, 11, and Server 2019 allows local attackers without credentials to tamper with system integrity through incorrect privilege assignment. The vulnerability requires local access but no user interaction, enabling unauthorized modifications to protected resources. No patch is currently available for this HIGH severity issue affecting multiple Windows versions.
Technical ContextAI
Affects Windows 10 1607. Incorrect privilege assignment in Windows Hello allows an unauthorized attacker to perform tampering locally.
RemediationAI
Monitor vendor advisories for a patch.
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Same weakness CWE-266 – Incorrect Privilege Assignment
View allSame technique Authentication Bypass
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External POC / Exploit Code
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