Vulnerability details
CVE-2026-82017
IGEL OS 11IGEL OS 12
IGEL OS 12 / 11 Boot Registry Parameter Injection via Unsigned Configuration Area
CVSS 4.0
8.6High
Official description
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.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 8.6High | 4.0 | CVEProject cvelistV5 (CNA) (VulnCheck) | CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H |
| 7.6High | 3.1 | CVEProject cvelistV5 (CNA) (VulnCheck) | CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| IGEL | IGEL OS 11 | 11.0.0 ≤ v < 11.11.150 | CVEProject cvelistV5 (CNA) |
| IGEL | IGEL OS 12 | 12.0.0 ≤ v < 12.7.6 | CVEProject cvelistV5 (CNA) |
References and advisories
5- https://kb.igel.com/en/security-safety/current/isn-2026-19-code-execution-via-boot-registry vendor-advisorypatch
- https://blog.amberwolf.com/blog/2026/august/thin-client-thin-crypto-overview/ technical-description
- 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
- https://github.com/AmberWolfCyber/DEFCON34-ThinClientThinCrypto/blob/main/scripts/igel/inject_bootreg.py exploit
- https://www.vulncheck.com/advisories/igel-os-12-11-boot-registry-parameter-injection-via-unsigned-configuration-area third-party-advisory
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Details
- Published
- 2026-08-29
- Last updated
- 2026-10-01
- State
- Published
- Assigner (CNA)
- VulnCheck
Exploit prediction (EPSS)
0.21%
Probability of exploitation in 30 days
11.8%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- No
- Exploitation
- Proof of concept
- Technical impact
- Total
Weaknesses (CWE)
- CWE-345Insufficient Verification of Data Authenticity