CVE-2026-20804 — Incorrect Privilege Assignment in Microsoft Windows 10 Version 1607

CWE-266 — Incorrect Privilege Assignment6 documents5 sources
Severity
7.7HIGHNVD
EPSS
0.0%
top 86.94%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
20
Microsoft Windows 10 Version 1607Microsoft Windows 10 Version 1809Microsoft Windows 10 Version 21h2+17 more
Timeline
PublishedJan 13

Description

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

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:NExploitability: 2.5 | Impact: 5.2

Affected Packages20 packages

▶NVDmicrosoft/windows< 10.0.14393.8783+4
▶NVDmicrosoft/windows_10_1607< 10.0.14393.8783
▶NVDmicrosoft/windows_10_1809< 10.0.17763.8276
▶NVDmicrosoft/windows_10_21h2< 10.0.19044.6809
▶NVDmicrosoft/windows_10_22h2< 10.0.19045.6809

🔴Vulnerability Details

2
CVEList
Windows Hello Tampering Vulnerability↗2026-01-13
▶
GHSA
GHSA-7mcr-xx2r-qf84: Incorrect privilege assignment in Windows Hello allows an unauthorized attacker to perform tampering locally↗2026-01-13
▶

📋Vendor Advisories

1
Microsoft
Windows Hello Tampering Vulnerability↗2026-01-13
▶

🕵️Threat Intelligence

1
Wiz
CVE-2026-20804 Impact, Exploitability, and Mitigation Steps | Wiz↗
▶
CVE-2026-20804 — Incorrect Privilege Assignment | cvebase