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CVE-2026-21400: Escalation of Privilege in Intel(R) AI Reference Models

0
Medium
VulnerabilityCVE-2026-21400cvecve-2026-21400
Published: 08/11/2026 (08/11/2026, 16:27:33 UTC)
Source: CVE Database V5
Product: Intel(R) AI Reference Models

Description

CVE-2026-21400 is a medium severity vulnerability in Intel(R) AI Reference Models before version v3.4.1 that allows escalation of privilege due to a protection mechanism failure in user applications running in Ring 3. An unprivileged software adversary with a privileged user context and low complexity attack can potentially escalate privileges via local access with passive user interaction. The vulnerability impacts confidentiality, integrity, and availability at a high level within the vulnerable system context, but does not extend to subsequent system-wide impacts. No patch or official remediation guidance is currently available.

CVSS v4.0

Score 5.4medium

Attack Vector
Local
Attack Complexity
Low
Attack Requirements
Present
Privileges Required
High
User Interaction
Passive
Vuln. Confidentiality
High
Vuln. Integrity
High
Vuln. Availability
High
Subsq. Confidentiality
None
Subsq. Integrity
None
Subsq. Availability
None
CVSS:4.0/AV:L/AC:L/AT:P/PR:H/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

AI-Powered Analysis

Machine-generated threat intelligence

AILast updated: 08/11/2026, 23:59:03 UTC

Technical Analysis

This vulnerability involves a failure in protection mechanisms within Intel(R) AI Reference Models prior to v3.4.1, specifically affecting user applications operating in Ring 3. It allows an adversary with unprivileged software combined with a privileged user to escalate privileges through a low complexity local attack requiring only passive user interaction. The CVSS 4.0 score is 5.4 (medium), reflecting high impact on confidentiality, integrity, and availability within the vulnerable system context but no broader system impact. No vendor advisory or patch information is provided, and no known exploits are reported in the wild.

Potential Impact

The vulnerability can lead to escalation of privilege, potentially compromising the confidentiality, integrity, and availability of the vulnerable Intel AI Reference Model environment at a high level. However, it does not result in further impacts beyond the immediate system context. The attack requires local access, a privileged user context, and passive user interaction, with low attack complexity.

Mitigation Recommendations

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or mitigation details are provided at this time.

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Technical Details

Data Version
5.2
Assigner Short Name
intel
Date Reserved
2026-01-13T04:00:20.818Z
Cvss Version
4.0
State
PUBLISHED
Remediation Level
null

Threat ID: 6a7b5470bf8831d539106b9b

Added to database: 08/11/2026, 16:57:20 UTC

Last enriched: 08/11/2026, 23:59:03 UTC

Last updated: 08/12/2026, 01:51:59 UTC

Views: 4

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