CVE-2026-69351

Published: Sep 8, 2026Modified: Sep 17, 2026

5.5

Vector

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

Exploitability: 1.8 / Impact: 3.6

Source: secure@microsoft.com (Secondary)

Description

Exposure of private personal information to an unauthorized actor in Windows Universal Plug and Play (UPnP) Device Host allows an authorized attacker to disclose information locally.

Affected (24)

Products: Microsoft: Windows 10 1607, Windows 10 1809, Windows 10 21h2, Windows 10 22h2, Windows 11 23h2, Windows 11 24h2, Windows 11 25h2, Windows 11 26h1, Windows Server 2012, Windows Server 2016, Windows Server 2019, Windows Server 2022, Windows Server 2025

13 products

Configuration A

24 vulnerable

Vulnerable Software	Affected Versions
Microsoft Windows 10 1607	Before 10.0.14393.9512
Microsoft Windows 10 1607	Before 10.0.14393.9512
Microsoft Windows 10 1809	Before 10.0.17763.9245
Microsoft Windows 10 1809	Before 10.0.17763.9245
Microsoft Windows 10 21h2	Before 10.0.19044.7725
Microsoft Windows 10 21h2	Before 10.0.19044.7725
Microsoft Windows 10 21h2	Before 10.0.19044.7725
Microsoft Windows 10 22h2	Before 10.0.19045.7725
Microsoft Windows 10 22h2	Before 10.0.19045.7725
Microsoft Windows 10 22h2	Before 10.0.19045.7725
Microsoft Windows 11 23h2	Before 10.0.22631.7582
Microsoft Windows 11 23h2	Before 10.0.22631.7582
Microsoft Windows 11 24h2	Before 10.0.26100.9445
Microsoft Windows 11 24h2	Before 10.0.26100.9445
Microsoft Windows 11 25h2	Before 10.0.26200.9445
Microsoft Windows 11 25h2	Before 10.0.26200.9445
Microsoft Windows 11 26h1	Before 10.0.28000.2954
Microsoft Windows 11 26h1	Before 10.0.28000.2954
Microsoft Windows Server 2012	All versions
Microsoft Windows Server 2012	Version r2
Microsoft Windows Server 2016	Before 10.0.14393.9512
Microsoft Windows Server 2019	Before 10.0.17763.9245
Microsoft Windows Server 2022	Before 10.0.20348.5622
Microsoft Windows Server 2025	Before 10.0.26100.33438

Related CWEs

CWE-359

Exposure of Private Personal Information to an Unauthorized Actor

The product does not properly prevent a person's private, personal information from being accessed by actors who either (1) are not explicitly authorized to access the information or (2) do not have the implicit consent of the person about whom the information is collected.

References (1)

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69351

Source: secure@microsoft.com

PatchVendor Advisory

Timeline

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