---
id: CVE-2026-82017
title: >-
  IGEL OS 12 before 12.7.6 and IGEL OS 11 before 11.11.150 contain a boot
  registry parameter injection vulnerability that allows attackers with physical
  access to execute arbitrary Linux loader parameters by writing to an
  unencrypted and u…
summary: >-
  IGEL OS 12 before 12.7.6 and IGEL OS 11 before 11.11.150 contain a boot
  registry parameter injection vulnerability that allows attackers with physical
  access to execute arbitrary Linux loader parameters by writing to an
  unencrypted and u…
severity: high
cvss: 7.6
cvssVector: 'CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H'
cwe:
  - CWE-345
vendor: IGEL
product: IGEL OS 12
affected:
  - os_12 >= 12.0.0 < 12.7.6
  - os_11 >= 11.0.0 < 11.11.150
published: '2026-08-28'
updated: '2026-09-24'
sourceUpdated: '2026-09-24T20:44:42.207'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-82017'
references:
  - url: >-
      https://blog.amberwolf.com/blog/2026/august/thin-client-thin-crypto-overview/
    label: disclosure@vulncheck.com
  - url: >-
      https://github.com/AmberWolfCyber/DEFCON34-ThinClientThinCrypto/blob/main/scripts/igel/inject_bootreg.py
    label: disclosure@vulncheck.com
  - url: >-
      https://kb.igel.com/en/security-safety/current/isn-2026-19-code-execution-via-boot-registry
    label: disclosure@vulncheck.com
  - url: >-
      https://media.defcon.org/DEF%20CON%2034/DEF%20CON%2034%20presentations/DEF%20CON%2034%20presentations/DEF%20CON%2034%20-%20Darren%20McDonald%20-%20Thin%20Client%20Thin%20Crypto%20-%20Bypassing%20Full-Desk%20Encryption%20Across%20Three%20Major%20Thin%20Clients%20Vendors%20without%20Breaking%20a%20Ci.pdf
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/igel-os-12-11-boot-registry-parameter-injection-via-unsigned-configuration-area
    label: disclosure@vulncheck.com
tags:
  - nvd
  - cve.org
  - exploit-available
epss: 0.00214
epssPercentile: 0.10431
exploitAvailable: true
ssvc:
  exploitation: poc
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-08-31T18:46:32.417689Z'
ingestedAt: '2026-09-24T15:45:56.695Z'
---

## Overview

IGEL OS 12 before 12.7.6 and IGEL OS 11 before 11.11.150 contain a boot registry parameter injection vulnerability that allows attackers with physical access to execute arbitrary Linux loader parameters by writing to an unencrypted and unsigned configuration area read by the signed bootloader. Attackers can inject malicious kernel command line parameters that execute with boot environment privileges without triggering TPM PCR measurement failures, as the attack does not modify the measured boot code.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.