CVE-2026-73003: Windows Modern Device Management (MDM) Elevation of Privilege Vulnerability
Use after free in Windows Modern Device Management (MDM) allows an authorized attacker to elevate privileges locally.
Other sources
Windows Modern Device Management (MDM) Elevation of Privilege Vulnerability
— Microsoft
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.28000.2954Patch KB5124012 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.26100.33438Patch KB5122871 - Upgrade
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Fixed in 10.0.26100.9445Patch KB5124008 - Upgrade
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Fixed in 10.0.22631.7582Patch KB5122880 - Upgrade
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Fixed in 10.0.19045.7725Patch KB5122878 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.26200.9445Patch KB5124008 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.19044.7725Patch KB5122878 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.20348.5622Patch KB5122882 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.17763.9245Patch KB5122876
Event History
Frequently Asked Questions
What level of access does an attacker need to exploit this issue?
An attacker must already be authorized on the affected system and exploit the flaw locally. The provided data does not indicate that remote exploitation or user interaction is required.
Which systems should be assessed for exposure?
Assess Microsoft Windows 10, Windows 11, Windows Server 2019, Windows Server 2022, and Windows Server 2025 systems. The vulnerability is in Windows Modern Device Management (MDM).
What is the potential impact if exploitation succeeds?
A successful exploit can elevate an authorized local attacker’s privileges. The supplied severity vector indicates potential high impact to confidentiality, integrity, and availability.