Nov 2026: Microsoft Trace Data Helper Elevation of Privilege Vulnerability
CVE-2026-122172 Published on November 10, 2026

Microsoft Trace Data Helper Elevation of Privilege Vulnerability
Use after free in Microsoft Trace Data Helper allows an authorized attacker to elevate privileges locally.

Vendor Advisory NVD

Vulnerability Analysis

Exploitation:
NONE
Automatable:
NO
Technical Impact:
TOTAL

Weakness Types

What is a Dangling pointer Vulnerability?

Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code.

CVE-2026-122172 has been classified to as a Dangling pointer vulnerability or weakness.

What is a Race Condition Vulnerability?

The program contains a code sequence that can run concurrently with other code, and the code sequence requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence that is operating concurrently.

CVE-2026-122172 has been classified to as a Race Condition vulnerability or weakness.


Products Associated with CVE-2026-122172

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Affected Versions

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