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CVE-2026-20804 | Mondoo Vulnerability Intelligence

Vulnerability IntelligenceCVE-2026-20804

CVE-2026-20804

HIGH7.7

Windows Hello Tampering Vulnerability

Published Jan 13, 2026

Modified Yesterday

References

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

https://www.cve.org/CVERecord?id=CVE-2026-20804

CVSS Analysis

CVSS v3.1

7.7

Exploitability

Attack Vector

LocalAV:L

Attack Complexity

LowAC:L

Privileges Required

NonePR:N

User Interaction

NoneUI:N

Scope

Scope

UnchangedS:U

Impact

Confidentiality

HighC:H

Integrity

HighI:H

Availability

NoneA:N

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

Weakness Type (CWE)

Other

Ecosystems

Timeline

PublishedJan 13, 2026

ModifiedApr 1, 2026