CVE-2026-20862

Published: Jan 13, 2026Modified: Jan 15, 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

Description

Exposure of sensitive information to an unauthorized actor in Windows Management Services allows an authorized attacker to disclose information locally.

Affected (11)

Products: Microsoft: Windows 10 1809, Windows 10 21h2, Windows 10 22h2, Windows 11 23h2, Windows 11 24h2, Windows 11 25h2, Windows Server 2019, Windows Server 2022, Windows Server 2022 23h2, Windows Server 2025

10 products

Windows Server 2022 23h2

Windows Server 2025

Configuration A

11 vulnerable

Vulnerable Software	Affected Versions
Microsoft Windows 10 1809	Before 10.0.17763.8276
Microsoft Windows 10 1809	Before 10.0.17763.8276
Microsoft Windows 10 21h2	Before 10.0.19044.6809
Microsoft Windows 10 22h2	Before 10.0.19045.6809
Microsoft Windows 11 23h2	Before 10.0.22631.6491
Microsoft Windows 11 24h2	Before 10.0.26100.7623
Microsoft Windows 11 25h2	Before 10.0.26200.7623
Microsoft Windows Server 2019	Before 10.0.17763.8276
Microsoft Windows Server 2022	Before 10.0.20348.4648
Microsoft Windows Server 2022 23h2	Before 10.0.25398.2092
Microsoft Windows Server 2025	Before 10.0.26100.32230

Related CWEs

CWE-200

Exposure of Sensitive Information to an Unauthorized Actor

The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.

References (1)

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-20862

Source: secure@microsoft.com

Vendor Advisory

Timeline

No history available yet.