medium4.6Known exploited
CVE-2025-47827
IGEL OS Use of a Key Past its Expiration Date Vulnerability
Exploited in the wild
This vulnerability is on the CISA Known Exploited Vulnerabilities list, added 2025-10-14. Federal due date: 2025-11-04.
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Impact
IGEL OS contains a use of a key past its expiration date vulnerability that allows for Secure Boot bypass. The igel-flash-driver module improperly verifies a cryptographic signature. Ultimately, a crafted root filesystem can be mounted from an unverified SquashFS image.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Igel | Igel Os | before 11.01.100 |
| Microsoft | Windows 10 1507 | before 10.0.10240.21161 |
| Microsoft | Windows 10 1607 | before 10.0.14393.8519 |
| Microsoft | Windows 10 1809 | before 10.0.17763.7919 |
| Microsoft | Windows 10 21h2 | before 10.0.19044.6456 |
| Microsoft | Windows 10 22h2 | before 10.0.19045.6456 |
| Microsoft | Windows 11 22h2 | before 10.0.22621.6060 |
| Microsoft | Windows 11 23h2 | before 10.0.22631.6060 |
| Microsoft | Windows 11 24h2 | before 10.0.26100.6899 |
| Microsoft | Windows 11 25h2 | before 10.0.26200.6899 |
| Microsoft | Windows Server 2012 | All versions Version r2 |
| Microsoft | Windows Server 2016 | before 10.0.14393.8519 |