CVE-2026-82018

What it is

IGEL OS 12 before 12.9.0, 12.8.3 LTS and IGEL OS 11 before 11.11.150 contain a secure boot bypass vulnerability in the GRUB boot stage that allows physically present attackers to gain unauthorized root access by placing an unsigned empty file named igel.conf on a partition. Attackers can exploit GRUB's fail-open signature verification behavior to drop into an interactive GRUB prompt, then boot the device's own kernel with additional command-line arguments to obtain a root shell with the disk unlocked while leaving TPM PCR values unaltered.

At a glance

Exploitability

Can be exploited with physical access without logging in. High risk of data exposure, data tampering.

Exploit odds

0.3% chance of exploitation in the next 30 days (EPSS).

Fix

No patch or advisory is linked yet. Look at mitigations or restrict exposure.

Timeline

1. 2026-08-28 22:16 UTC PublishedDisclosed publicly on CVE.org and NVD
2. 2026-09-24 20:44 UTC Last updatedMost recent change to the record

Details

Published

2026-08-28 22:16 UTC

Last modified

2026-09-24 20:44 UTC

Exploit probability

0.3% · EPSS, next 30 days

Weakness

CWE-636

Record status

Awaiting Analysis

Attack profile CVSS 4.0 · 6.8

Attack vector

Physical

Complexity

Low

Attack requirements

None

Privileges needed

None

User interaction

None

Confidentiality

High

Integrity

High

Availability

None