SB2026081749 - Privilege escalation in Microsoft Malware Protection Engine

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Main Vulnerability Database SB2026081749

SB2026081749 - Privilege escalation in Microsoft Malware Protection Engine

Published: August 17, 2026

Security Bulletin ID SB2026081749
CSH Severity
Low
Patch available
NO
Number of vulnerabilities 1
Exploitation vector Local access
Highest impact Code execution

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Improper access control (CVE-ID: CVE-2026-69414)

CWE-ID: CWE-284 - Improper Access Control

CVSSv4: 8.5 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]


The vulnerability allows a local user to escalate privileges.

The vulnerability exists due to improper access control in Microsoft Malware Protection Engine when handling crafted local interactions. A local user can exploit the flaw to escalate privileges.

Note, the vulnerability was dubbed ShieldBreak.


Remediation

Cybersecurity Help is not aware of any official remediation provided by the vendor.

References