CVE-2026-48576

Published Jun 9, 2026

Last updated 6 days ago

CVSS high 7.9
Windows Secure Boot

Overview

AI description

Automated description summarized from trusted sources.

CVE-2026-48576 is a security feature bypass vulnerability affecting Microsoft Windows Secure Boot. This flaw arises from the system's reliance on a component that is not updateable, meaning it cannot be patched to address underlying weaknesses or bugs. Exploitation of CVE-2026-48576 requires local access and allows an authorized attacker to bypass a security feature within the Windows Secure Boot mechanism. Microsoft released a security update on June 9, 2026, to address this issue.

Description
No cwe for this issue in Windows Secure Boot allows an authorized attacker to bypass a security feature locally.
Source
secure@microsoft.com
NVD status
Modified
Products
windows_10_1607, windows_10_1809, windows_10_21h2, windows_10_22h2, windows_11_23h2, windows_11_24h2, windows_11_25h2, windows_11_26h1, windows_server_2012, windows_server_2016, windows_server_2019, windows_server_2022, windows_server_2025

Risk scores

CVSS 3.1

Type
Secondary
Base score
7.9
Impact score
5.8
Exploitability score
1.5
Vector string
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N
Severity
HIGH

Weaknesses

secure@microsoft.com
CWE-1329

Social media

Hype score
Not currently trending

Configurations

References

Sources include official advisories and independent security research.