CVE-2026-0390HighCVSS 6.7

UEFI Secure Boot Security Feature Bypass Vulnerability

Published
June 2, 2026
Last Modified
—

🔗 CVE IDs covered (1)

CVE-2026-0390 →

📋 Description

Reliance on untrusted inputs in a security decision in Windows Boot Loader allows an authorized attacker to bypass a security feature locally.

🎯 Affected products16

  • Windows 10 Version 1607 for 32-bit Systems
  • Windows 10 Version 1607 for x64-based Systems
  • Windows 10 Version 1809 for 32-bit Systems
  • Windows 10 Version 1809 for x64-based Systems
  • Windows 10 Version 21H2 for 32-bit Systems
  • Windows 10 Version 21H2 for ARM64-based Systems
  • Windows 10 Version 21H2 for x64-based Systems
  • Windows 10 Version 22H2 for 32-bit Systems
  • Windows 10 Version 22H2 for ARM64-based Systems
  • Windows 10 Version 22H2 for x64-based Systems
  • Windows Server 2016
  • Windows Server 2016 (Server Core installation)
  • Windows Server 2019
  • Windows Server 2019 (Server Core installation)
  • Windows Server 2022
  • Windows Server 2022 (Server Core installation)

✅ Remediation

KB5082123 (Security Update) — fixed build 10.0.17763.8644 KB5082142 (Security Update) — fixed build 10.0.20348.5020 KB5082200 (Security Update) — fixed build 10.0.19044.7184 KB5082200 (Security Update) — fixed build 10.0.19045.7184 KB5082198 (Security Update) — fixed build 10.0.14393.9060

🔗 References (9)