---
id: CVE-2026-21400
title: >-
  Protection mechanism failure for some Intel(R) AI Reference Models before
  version v3.4.1 within Ring 3: User Applications may allow an escalation of
  privilege
summary: >-
  Protection mechanism failure for some Intel(R) AI Reference Models before
  version v3.4.1 within Ring 3: User Applications may allow an escalation of
  privilege. Unprivileged software adversary with a privileged user combined
  with a low co…
severity: medium
cvss: 6.7
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H'
cwe:
  - CWE-693
  - CWE-693
vendor: intel
product: ai_reference_models
affected:
  - ai_reference_models < 3.4.1
patched:
  - ai_reference_models 3.4.1
published: '2026-08-11'
updated: '2026-10-15'
sourceUpdated: '2026-10-15T20:43:26.523'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-21400'
references:
  - url: >-
      https://intel.com/content/www/us/en/security-center/advisory/intel-sa-01432.html
    label: secure@intel.com
tags:
  - nvd
epss: 0.00157
epssPercentile: 0.04816
ingestedAt: '2026-10-27T18:12:09.325Z'
---

## Overview

Protection mechanism failure for some Intel(R) AI Reference Models before version v3.4.1 within Ring 3: User Applications may allow an escalation of privilege. Unprivileged software adversary with a privileged user combined with a low complexity attack may enable escalation of privilege. This result may potentially occur via local access when attack requirements are present without special internal knowledge and requires passive user interaction. The potential vulnerability may impact the confidentiality (high), integrity (high) and availability (high) of the vulnerable system, resulting in subsequent system confidentiality (none), integrity (none) and availability (none) impacts.

## Affected

- `ai_reference_models < 3.4.1`

## Remediation

Upgrade past the affected range:

- `ai_reference_models 3.4.1`