CVE-2026-82017
IGEL OS 12 / 11 Boot Registry Parameter Injection via Unsigned Configuration Area
CVSS Score
7.6
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-345 |
| Vendor | igel |
| Product | igel os 12 |
| Published | Aug 28, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H Attack Vector
Physical
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High
Affected Versions
IGEL / IGEL OS 12
12.0.0 < 12.7.6
IGEL / IGEL OS 11
11.0.0 < 11.11.150
References
kb.igel.com: https://kb.igel.com/en/security-safety/current/isn-2026-19-code-execution-via-boot-registry blog.amberwolf.com: https://blog.amberwolf.com/blog/2026/august/thin-client-thin-crypto-overview/ media.defcon.org: 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 github.com: https://github.com/AmberWolfCyber/DEFCON34-ThinClientThinCrypto/blob/main/scripts/igel/inject_bootreg.py vulncheck.com: https://www.vulncheck.com/advisories/igel-os-12-11-boot-registry-parameter-injection-via-unsigned-configuration-area
Credits
🔍 Darren McDonald from AmberWolf