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OpenAdvisories
High · 7.0 CVE-2026-112987 EUVD-2026-121910GHSA-6q6x-xpg3-653r

Windows Modern Device Management (MDM) Elevation of Privilege Vulnerability

Published Nov 10, 2026 · Updated Nov 12, 2026 · Assigned by microsoft

Vendor: Microsoft Product: Windows 10 Version 1607 Product: Windows 10 Version 1809 Product: Windows 10 Version 21H2 Product: Windows 10 Version 22H2 Product: Windows 11 version 23H2 Product: Windows 11 Version 24H2 Product: Windows 11 Version 25H2 Product: Windows 11 version 26H1 Product: Windows 11 Version 26H2 Product: Windows Server 2016 Product: Windows Server 2016 (Server Core installation) Product: Windows Server 2019 Product: Windows Server 2019 (Server Core installation) Product: Windows Server 2022 Product: Windows Server 2025 Product: Windows Server 2025 (Server Core installation) Platform: Windows

Description

Integer overflow or wraparound in Windows Modern Device Management (MDM) allows an authorized attacker to elevate privileges locally.

Affected products

VendorProductAffectedFixed
Microsoft Windows 10 Version 1607 10.0.14393.0 – < 10.0.14393.9688 10.0.14393.9688
Microsoft Windows 10 Version 1809 10.0.17763.0 – < 10.0.17763.9487 10.0.17763.9487
Microsoft Windows 10 Version 21H2 10.0.19044.0 – < 10.0.19044.7846 10.0.19044.7846
Microsoft Windows 10 Version 22H2 10.0.19045.0 – < 10.0.19045.7846 10.0.19045.7846
Microsoft Windows 11 version 23H2 10.0.22631.0 – < 10.0.22631.7711 10.0.22631.7711
Microsoft Windows 11 Version 24H2 10.0.26100.0 – < 10.0.26100.9974 10.0.26100.9974
Microsoft Windows 11 Version 25H2 10.0.26200.0 – < 10.0.26200.9974 10.0.26200.9974
Microsoft Windows 11 version 26H1 10.0.28000.0 – < 10.0.28000.3501 10.0.28000.3501
Microsoft Windows 11 Version 26H2 10.0.26300.0 – < 10.0.26300.9974 10.0.26300.9974
Microsoft Windows Server 2016 10.0.14393.0 – < 10.0.14393.9688 10.0.14393.9688
Microsoft Windows Server 2016 (Server Core installation) 10.0.14393.0 – < 10.0.14393.9688 10.0.14393.9688
Microsoft Windows Server 2019 10.0.17763.0 – < 10.0.17763.9487 10.0.17763.9487
Microsoft Windows Server 2019 (Server Core installation) 10.0.17763.0 – < 10.0.17763.9487 10.0.17763.9487
Microsoft Windows Server 2022 10.0.20348.0 – < 10.0.20348.5870 10.0.20348.5870
Microsoft Windows Server 2025 10.0.26100.0 – < 10.0.26100.33822 10.0.26100.33822
Microsoft Windows Server 2025 (Server Core installation) 10.0.26100.0 – < 10.0.26100.33822 10.0.26100.33822

Advisories 2

References