PT-2026-87742 · Microsoft · Windows 10 Version 21H2+5

CVE-2026-69820

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Published

2026-09-08

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Updated

2026-09-08

CVSS v3.1

8.2

High

VectorAV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
Heap-based buffer overflow in Windows Hello allows an authorized attacker to elevate privileges locally.

Fix

Heap Based Buffer Overflow

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Weakness Enumeration

CWE-122

Related Identifiers

CVE-2026-69820

Affected Products

Windows 10 Version 21H2
Windows 10 Version 22H2
Windows 11 Version 23H2
Windows 11 Version 24H2
Windows 11 Version 25H2
Windows 11 Version 26H1