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CVE-2025-47827

MediumPublished

IGEL OS Use of a Key Past its Expiration Date Vulnerability

Published: Jun 5, 2025
Updated: Feb 26, 2026
Assigning CNA: mitre
Evidence observed: Oct 14, 2025

Primary CVSS

4.6/ 10Medium

nvd · CVSS 3.1

CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS probability estimate

4.9%

Low · next 30 days

Percentile: 91.8%
Model date: Sep 21, 2026

EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.

CISA Known Exploited

This CVE appears in the CISA Known Exploited Vulnerabilities catalog.

Summary

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.

Sources

CVE-2025-47827PoC
PoC and vulnerability report for CVE-2025-47827.

Responsible use

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