CVE-2025-55338HighCVSS 6.1

Windows BitLocker Security Feature Bypass Vulnerability

Published
October 14, 2025
Last Modified
—

🔗 CVE IDs covered (1)

CVE-2025-55338 →

📋 Description

Missing Ability to Patch ROM Code in Windows BitLocker allows an unauthorized attacker to bypass a security feature with a physical attack.

🎯 Affected products29

  • 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 10 for 32-bit Systems
  • Windows 10 for x64-based Systems
  • Windows 11 Version 22H2 for ARM64-based Systems
  • Windows 11 Version 22H2 for x64-based Systems
  • Windows 11 Version 23H2 for ARM64-based Systems
  • Windows 11 Version 23H2 for x64-based Systems
  • 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 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)
  • Windows Server 2022, 23H2 Edition (Server Core installation)
  • Windows Server 2025
  • Windows Server 2025 (Server Core installation)

✅ Remediation

KB5066835 (Security Update) — fixed build 10.0.26200.6899 KB5066586 (Security Update) — fixed build 10.0.17763.7919 KB5066782 (Security Update) — fixed build 10.0.20348.4294 KB5066791 (Security Update) — fixed build 10.0.19044.6456 KB5066793 (Security Update) — fixed build 10.0.22621.6060 KB5066791 (Security Update) — fixed build 10.0.19045.6456 KB5066835 (Security Update) — fixed build 10.0.26100.6899 KB5066793 (Security Update) — fixed build 10.0.22631.6060 KB5066780 (Security Update) — fixed build 10.0.25398.1913 KB5066837 (Security Update) — fixed build 10.0.10240.21161 KB5066836 (Security Update) — fixed build 10.0.14393.8519

🔗 References (17)