CVE-2026-108133 Windows Modern Device Management (MDM) Elevation of Privilege Vulnerability

High 7.8 Published Updated

An authorized local attacker can elevate privileges via a use-after-free vulnerability in Windows Modern Device Management.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Local or same network only
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-108133?

CVE-2026-108133 is a high-severity use after free vulnerability in Microsoft Windows Server 2022, published on 13 Oct 2026. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Release of invalid pointer or reference in Windows Modern Device Management (MDM) allows an authorized attacker to elevate privileges locally.

Weakness: CWE-763

Which versions are affected by CVE-2026-108133?

It affects 1 product.

Products include Microsoft Windows Server 2022.

How do I fix CVE-2026-108133?

No fix has been published for CVE-2026-108133 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.

Is CVE-2026-108133 being exploited?

There is no known exploitation of CVE-2026-108133 in the wild and no public exploit code.

All Microsoft Windows Server 2022 vulnerabilities

Sources

Also known as GHSA-9qgr-w83p-v6xm.

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