PT-2026-87345 · Microsoft · Windows+20

CVE-2026-69298

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Published

2026-09-08

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Updated

2026-09-09

CVSS v3.1

7.8

High

VectorAV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVE-2026-69298 scores 7.8.
Integer overflow in Windows Biometric Service lets authorized local attackers gain SYSTEM privileges.
Exploitation unlikely; no public disclosure or in-the-wild use yet.
Patch now for Windows 10 1607 and others.
https://t.co/Vsem3XKkvS https://t.co/Pahr2IXjiN

Fix

Integer Overflow

Found an issue in the description? Have something to add? Feel free to write us 👾
dbugs@ptsecurity.com

Weakness Enumeration

CWE-190

Related Identifiers

CVE-2026-69298

Affected Products

Windows
Windows 10 Version 1607
Windows 10 Version 1809
Windows 10 Version 21H2
Windows 10 Version 22H2
Windows 11 Version 23H2
Windows 11 Version 24H2
Windows 11 Version 25H2
Windows 11 Version 26H1
Windows Server 2016
Windows Server 2019
Windows Server 2022
Windows Server 2025
Windows 10 1607
Windows 10 1809
Windows 10 21H2
Windows 10 22H2
Windows 11 23H2
Windows 11 24H2
Windows 11 25H2
Windows 11 26H1