CVE-2026-105726: Microsoft Defender Information Disclosure Vulnerability

Overview

Severity
Medium (CVSS 5.5)
CVSS Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C
Category
Information Disclosure
Exploit Status
Not Exploited
Exploitation Likelihood
Less Likely
Patch Tuesday
2026-Oct
Released
2026-10-13

Description

Out-of-bounds read in Microsoft Defender allows an authorized attacker to disclose information locally.

FAQ

What type of information could be disclosed by this vulnerability? An attacker who successfully exploited this vulnerability could potentially read portions of heap memory.

Affected Products (1)

System Center

  • Microsoft Defender for Endpoint for Windows

Acknowledgments

Anonymous

Revision History

  • 2026-10-13: Information published.