CVE-2025-47827 IGEL OS Use of a Key Past its Expiration Date
Attackers can bypass Secure Boot in IGEL OS by exploiting improper signature verification in the flash driver, allowing unverified root filesystems to be mounted.
- Exploited in the wild
- Since 14 Oct 2025
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-47827?
CVE-2025-47827 is a medium-severity vulnerability in Microsoft Windows 10 1507, published on 5 Jun 2025. It can only be exploited from the same machine or local network, with no action from the victim.
Official 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.
Weakness: CWE-347
Which versions are affected by CVE-2025-47827?
It affects 16 products.
Products include Igel Igel Os, Microsoft Windows 10 1507, Microsoft Windows 10 1607, Microsoft Windows 10 1809, Microsoft Windows 10 21h2, Microsoft Windows 10 22h2 and 10 more.
How do I fix CVE-2025-47827?
No fix has been published for CVE-2025-47827 yet. Limit exposure of the affected software until one is available. US federal agencies must fix it by 4 Nov 2025.
Is CVE-2025-47827 being exploited?
Yes. Attackers have exploited CVE-2025-47827 in the wild since at least 14 Oct 2025.
Public exploit code: 1 proofs of concept on GitHub.
Sources
Also known as GHSA-pww7-j9v6-xc6j.