IGEL OS Use of a Key Past its Expiration Date Vulnerability
n/a — n/a
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.
4.6
4.0%
Vector breakdown
- Attack vector
- Physical
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- None
- Availability
- High
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Published
- Jun 5, 2025
- Modified
- Jun 17, 2026
- Added to KEV
- Oct 14, 2025
- Federal patch due
- Nov 4, 2025
CISA required action
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Weakness classification
Affected packages
Proof-of-concept & exploitation references
1 foundWeaponization
Public repositories whose name or description references CVE-2025-47827, found via a live GitHub search at request time. These are community-sourced signals, not a verified working exploit - cross-check each one before relying on it, and treat higher star counts and recent activity as (weak) corroboration, not proof.
References
How this class of flaw gets exploited
Frequently asked questions
What is CVE-2025-47827?
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.
How severe is CVE-2025-47827?
CVE-2025-47827 has a CVSS base score of 4.6 out of 10 (CVSS 3.1).
Is CVE-2025-47827 actively exploited in the wild?
Yes. CVE-2025-47827 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added Oct 14, 2025, meaning CISA has confirmed evidence of active exploitation.
What is the EPSS score for CVE-2025-47827?
4.0% - meaning FIRST.org's EPSS model estimates a 4.0% probability this vulnerability will be exploited in the wild within 30 days (90% percentile among all scored CVEs).
Is there exploit tooling available for CVE-2025-47827?
We found 1 public GitHub repository referencing CVE-2025-47827, though none matched a known Nuclei template or Metasploit module at last check. Review each one before relying on it - see the proof-of-concept section above.
What type of vulnerability is CVE-2025-47827?
CVE-2025-47827 is classified under CWE-347 (CWE-347 Improper Verification of Cryptographic Signature).
Cross-checked against
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