CVE-2026-102204: Microsoft Microsoft Defender for Endpoint Elevation of Privilege Vulnerability

Overview

Severity

High (CVSS 7.8)

CVSS Vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C

Category

Elevation of Privilege

Exploit Status

Not Exploited

Exploitation Likelihood

Less Likely

Patch Tuesday

2026-Oct

Released

2026-10-13

Description

Improper link resolution before file access ('link following') in Microsoft Defender for Endpoint allows an authorized attacker to elevate privileges locally.

FAQ

What privileges could be gained by an attacker who successfully exploited this vulnerability? An attacker who successfully exploited this vulnerability could gain SYSTEM privileges.

Affected Products (1)

System Center

• Microsoft Defender for Endpoint for Linux

Acknowledgments

<a href="https://github.com/vealending">Nils Holten</a>

Revision History

• 2026-10-13: Information published.