CVE-2025-47827HighCVSS 4.6

MITRE CVE-2025-47827: Secure Boot bypass in IGEL OS before 11

Published
October 14, 2025
Last Modified
—

🔗 CVE IDs covered (1)

CVE-2025-47827 →

📋 Description

In IGEL OS before 11, Secure Boot can be bypassed because the igel-flash-driver module improperly verifies a cryptographic signature. Ultimately, a crafted root filesystem can be mounted from an unverified SquashFS image. MITRE created this CVE on their behalf. The documented Windows updates incorporate updates in IGEL OS which address this vulnerability. Please see Security Update Guide Supports CVEs Assigned by Industry Partners for more information.

🎯 Affected products33

  • 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 2012
  • Windows Server 2012 (Server Core installation)
  • Windows Server 2012 R2
  • Windows Server 2012 R2 (Server Core installation)
  • 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)
  • +3 more not shown

✅ Remediation

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 KB5066835 (Security Update) — fixed build 10.0.26200.6899 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 KB5066875 (Monthly Rollup) — fixed build 6.2.9200.25722 KB5066873 (Monthly Rollup) — fixed build 6.3.9600.22824

🔗 References (21)