IGEL OS Use of a Key Past its Expiration Date Vulnerability

Technical Severity

CVSS v3.1 Metrics

MEDIUM

4.6 / 10

Minimal Risk Critical

Vector Specification

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

Exploitation Likelihood

EPSS Prediction

2.49 %

Predictive Probability

Percentile Rank

85.2 th

Documented as more likely to be exploited than 85.2% of known CVEs.

Detection Date

Oct 14, 2025

Remediation Due

Nov 04, 2025

CISA Catalog Active

Threat Analysis

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.

Remediation Directive

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

External Intelligence

https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2025-47827

NVD

National Vulnerability Database

https://nvd.nist.gov/vuln/detail/CVE-2025-47827