IGEL OS 12: Insufficient Verification of Data Authenticity
CVE-2026-82017 is a high-severity insufficient verification of data authenticity vulnerability in IGEL OS 12 from Igel, with a CVSS 3.1 base score of 7.6 out of 10. It can be exploited with physical access to the device by an unauthenticated attacker, without any action from a user. The record lists version 12.7.6 as the first without the flaw, so updating IGEL OS 12 to that release or later removes the exposure. There is no confirmed exploitation so far. EPSS estimates a 0.21% chance of exploitation within 30 days, which is low compared with other CVEs.
High severity with no evidence of exploitation so far.
What to do
- Update IGEL OS 12 to 12.7.6 or a later version.
- Update IGEL OS 11 to 11.11.150 or a later version.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| IGEL | IGEL OS 12 | 12.0.0 up to, but not including, 12.7.6 | 12.7.6 |
| IGEL | IGEL OS 11 | 11.0.0 up to, but not including, 11.11.150 | 11.11.150 |
Version data comes from the organisation that assigned the CVE. Confirm against the vendor advisory before deciding you are unaffected.
How the severity score breaks down
- Attack vector
- PhysicalThe attacker must physically touch the device.
- Attack complexity
- LowNo special conditions are needed; the attack works reliably.
- Privileges required
- NoneNo account or login is needed.
- User interaction
- NoneNo action by a victim is required.
- Scope
- ChangedThe attack can reach beyond the vulnerable component into other systems.
- Confidentiality
- HighAll data handled by the component can be read.
- Integrity
- HighData or code can be modified at will.
- Availability
- HighThe component can be taken down completely.
Vector: CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H. Scored by CNA (vulncheck.com).
| Scoring system | Score | Severity | Scored by |
|---|---|---|---|
| CVSS 4.0 | 8.6 | High | CNA (vulncheck.com) |
| CVSS 3.1 | 7.6 | High | CNA (vulncheck.com) |
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.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Insufficient Verification of Data Authenticity
The product does not sufficiently verify the origin or authenticity of data, in a way that causes it to accept invalid data.
More Insufficient Verification of Data Authenticity vulnerabilities (CWE-345)
Timeline
- CVE record published.
- CISA published its SSVC assessment (exploitation: poc, automatable: no, technical impact: total).
- Record last changed materially (score, affected products, status or references).
References
Other references
- blog.amberwolf.com/blog/2026/august/thin-client-thin-crypto-overview/
- github.com/AmberWolfCyber/DEFCON34-ThinClientThinCrypto/blob/main/scripts/igel/inject_bootreg.py
- kb.igel.com/en/security-safety/current/isn-2026-19-code-execution-via-boot-registry
- media.defcon.org/DEF%20CON%2034/DEF%20CON%2034%20presentations/DEF%20CON%2034%20presentations/DEF%20CON%2034%…
- vulncheck.com/advisories/igel-os-12-11-boot-registry-parameter-injection-via-unsigned-configuration-area
Recent Insufficient Verification of Data Authenticity vulnerabilities
- 9.8 Critical severity
- 8.7 High severity
- 8.7 High severity
- 7.6 High severity
- 7.1 High severity
- 7.0 High severity
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