CVE-2025-47827 — IGEL OS Use of a Key Past its Expiration Date Vulnerability

Overview

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.

Vulnerability details

CVE ID

CVE-2025-47827

Vulnerability

IGEL OS Use of a Key Past its Expiration Date Vulnerability

Vendor

IGEL

Affected products

IGEL: IGEL OS

Severity

HIGH

Exploitation status

Actively exploited in the wild (CISA KEV)

Published

2025-10-14

Remediation guidance

CVE-2025-47827 is in CISA's Known Exploited Vulnerabilities (KEV) catalog — U.S. federal civilian agencies are required to remediate it under Binding Operational Directive 22-01. Treat it as a priority for every environment.

Apply the vendor's official security update for IGEL the affected product as soon as possible. Where a patch is unavailable, apply vendor mitigations or isolate/segment exposed systems.

Hunt for indicators of compromise tied to this vulnerability and confirm logging/EDR coverage on affected assets.

Authoritative references

• NVD — National Vulnerability Database
• MITRE CVE Record
• CISA Known Exploited Vulnerabilities Catalog
• FIRST EPSS — Exploit Prediction Scoring