Is CVE-2025-47827 exploited in the wild?

Yes. CVE-2025-47827 is known to be exploited in the wild, first recorded on 14 October 2025. Treat it as urgent.

How severe is CVE-2025-47827?

Critical severity, with a CVSS score of 4.6, published 14 October 2025.

Is there a fix for CVE-2025-47827?

No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

How is CVE-2025-47827 attacked?

It is attacked with physical access, in an operating system.

Am I affected by CVE-2025-47827?

Check whether you run IGEL OS. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2025-47827: IGEL OS Secure Boot bypass in igel-flash-driver

CVE-2025-47827 · Severity: critical · CVSS 4.6 · Exploited in the wild · Published 2025-10-14

IGEL OS, an operating system used for thin clients and secure endpoints, contains a vulnerability that allows an attacker to bypass Secure Boot protections. By exploiting a flaw in how the system verifies digital signatures, an attacker with physical access can load a malicious root filesystem. This could allow for the persistent compromise of the device, bypassing the security measures intended to ensure only trusted software runs on the hardware.

Quick answers

Is CVE-2025-47827 exploited in the wild?: Yes. CVE-2025-47827 is known to be exploited in the wild, first recorded on 14 October 2025. Treat it as urgent.
How severe is CVE-2025-47827?: Critical severity, with a CVSS score of 4.6, published 14 October 2025.
Which products and versions are affected?: IGEL IGEL OS before 11.01.100.
Is there a fix for CVE-2025-47827?: No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2025-47827 attacked?: It is attacked with physical access, in an operating system.
Am I affected by CVE-2025-47827?: Check whether you run IGEL OS. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

A vulnerability in the igel-flash-driver module of IGEL OS (versions prior to 11.01.100) stems from the improper verification of cryptographic signatures, specifically the use of a key past its expiration date (CWE-347). An attacker with physical access can exploit this to bypass Secure Boot mechanisms. By providing a crafted, unverified SquashFS image, the attacker can force the system to mount a malicious root filesystem. This vulnerability has been observed in the wild and is tracked in CISA's Known Exploited Vulnerabilities (KEV) catalog.

Affected products

IGEL IGEL OS before 11.01.100

Timeline

2025-06-05: disclosed: Initial CVE assignment and description provided by MITRE
2025-10-14: kev added: CISA added the vulnerability to the Known Exploited Vulnerabilities catalog
2025-10-14: advisory: NVD published the vulnerability details

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