CVE-2026-82017

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.

Score

CVSS 4.0 8.6 High

Status

Awaiting Analysis - disclosure@vulncheck.com

Published

2026-08-28

Last modified

2026-10-01

Weaknesses

CWE-345

Affected products

• Igel Os (Igel)

References

• https://blog.amberwolf.com/blog/2026/august/thin-client-thin-crypto-overview/
• https://github.com/AmberWolfCyber/DEFCON34-ThinClientThinCrypto/blob/main/scripts/igel/inject_bootreg.py
• https://kb.igel.com/en/security-safety/current/isn-2026-19-code-execution-via-boot-registry
• https://media.defcon.org/DEF%20CON%2034/DEF%20CON%2034%20presentations/DEF%20CON%2034%20presentations/DEF%20CON%2034%20…
• https://www.vulncheck.com/advisories/igel-os-12-11-boot-registry-parameter-injection-via-unsigned-configuration-area