CVE-2025-47827
KEVIGEL OS Use of a Key Past its Expiration Date Vulnerability
Description
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.
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.
CVSS 3.1 vector
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HPublishedJun 5, 2025
Last modifiedJun 17, 2026
Added to KEVOct 14, 2025
Remediation dueNov 4, 2025
References
- github.com/Zedeldi/CVE-2025-47827ExploitThird Party Advisory
- github.com/Zedeldi/igelfsProduct
- msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2025-47827Third Party Advisory
- cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-47827US Government Resource
0 recent articles mention this CVE
53
Risk assessment · Medium
Actively exploited. Patch immediately.
- Exploitation
- Confirmed in the wild (CISA KEV)
- Federal remediation deadline
- Overdue by 356 days
- CVSS
- 4.6 MEDIUM
- EPSS (30-day exploit probability)
- 4.9% · top 8% of all CVEs
- Weakness
- CWE-347
- Preconditions
- No privileges and no user interaction
Recommended actions
- 1.Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
- 2.Treat as emergency change: patch or isolate internet-facing instances first.
- 3.Hunt for compromise: review logs for the disclosure window, not just from the patch date.
Assessment is derived automatically from the live signals above; verify against your own asset inventory.