Windows Boot Manager Privilege Escalation via Physical Access

Publication date: 2026-09-08

Last updated on: 2026-09-24

Assigner: Microsoft Corporation

Description

No cwe for this issue in Windows Boot Manager allows an unauthorized attacker to elevate privileges with a physical attack.

CVSS Scores

EPSS Scores

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Meta Information

Published

2026-09-08

Last Modified

2026-09-24

Generated

2026-09-29

AI Q&A

2026-09-09

EPSS Evaluated

2026-09-27

NVD

CVE-2026-77892

Affected Vendors & Products

Vendor	Product	Version / Range
microsoft	windows_boot_manager	*

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-693	The product does not use or incorrectly uses a protection mechanism that provides sufficient defense against directed attacks against the product.

Attack-Flow Graph

Executive Summary

This vulnerability in Windows Boot Manager allows an unauthorized attacker with physical access to elevate their privileges. It does not have a specific CWE assigned.

Impact Analysis

An attacker could gain elevated privileges on a system by exploiting this vulnerability, potentially leading to unauthorized access or control of the affected device.

Mitigation Strategies

Since this is a physical attack requiring unauthorized access, ensure physical security of systems. Apply all available Windows Boot Manager updates from Microsoft immediately. Disable boot from external media if not needed.

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