What is CVE-2026-32220?

CVE-2026-32220 is a security advisory published by Microsoft Security Response Center (MSRC) with High severity. UEFI Secure Boot Security Feature Bypass Vulnerability

Which CVE IDs does CVE-2026-32220 cover?

CVE-2026-32220 covers the following CVE IDs: CVE-2026-32220. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of CVE-2026-32220?

CVE-2026-32220 has a CVSS v3 base score of 4.4, published by Microsoft Security Response Center (MSRC).

Which products are affected by CVE-2026-32220?

CVE-2026-32220 affects 8 products, including: Windows 11 Version 24H2 for ARM64-based Systems; Windows 11 Version 24H2 for x64-based Systems; Windows 11 Version 25H2 for ARM64-based Systems; Windows 11 Version 25H2 for x64-based Systems; Windows 11 Version 26H1 for ARM64-based Systems; and others — see the full list on the advisory page.

CVE-2026-32220HighCVSS 4.4

UEFI Secure Boot Security Feature Bypass Vulnerability

Vendor

Microsoft Security Response Center (MSRC)

Published

June 2, 2026

Last Modified

—

🔗 CVE IDs covered (1)

CVE-2026-32220 →

📋 Description

Improper access control in Windows Virtualization-Based Security (VBS) Enclave allows an authorized attacker to bypass a security feature locally.

🎯 Affected products8

Windows 11 Version 24H2 for ARM64-based Systems
Windows 11 Version 24H2 for x64-based Systems
Windows 11 Version 25H2 for ARM64-based Systems
Windows 11 Version 25H2 for x64-based Systems
Windows 11 Version 26H1 for ARM64-based Systems
Windows 11 version 26H1 for x64-based Systems
Windows Server 2025
Windows Server 2025 (Server Core installation)

✅ Remediation

KB5083768 (Security Update) — fixed build 10.0.28000.1836 KB5082063 (Security Update) — fixed build 10.0.26100.32690 KB5083769 (Security Update) — fixed build 10.0.26200.8246 KB5083769 (Security Update) — fixed build 10.0.26100.8246

🔗 CVE IDs covered (1)

📋 Description

🎯 Affected products8

✅ Remediation

🔗 References (7)