CVE-2026-21387: Escalation of Privilege in Intel(R) LLM Library for PyTorch
CVE-2026-21387 is a medium severity escalation of privilege vulnerability in the Intel(R) LLM Library for PyTorch. It involves a protection mechanism failure in user applications running in Ring 3, potentially allowing an unprivileged adversary with some privileged user access to escalate privileges via a low complexity local attack requiring passive user interaction. The vulnerability impacts confidentiality, integrity, and availability at a high level within the vulnerable system context. No specific affected versions or patches are currently identified.
AI Analysis
Technical Summary
This vulnerability in the Intel(R) LLM Library for PyTorch arises from a failure in protection mechanisms within user applications operating in Ring 3. An adversary with unprivileged software combined with a privileged user can exploit this vulnerability locally with low complexity and passive user interaction to escalate privileges. The CVSS 4.0 base score is 5.4, reflecting medium severity, with high impact on confidentiality, integrity, and availability within the vulnerable system. No vendor remediation level or patch information is provided, and no known exploits are reported in the wild.
Potential Impact
The vulnerability may allow escalation of privilege, potentially compromising the confidentiality, integrity, and availability of the affected system at a high level. However, the subsequent impact on system confidentiality, integrity, and availability beyond the immediate vulnerable context is reported as none. This indicates the risk is contained within the affected application or process context.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or temporary workaround has been documented at this time.
CVE-2026-21387: Escalation of Privilege in Intel(R) LLM Library for PyTorch
Description
CVE-2026-21387 is a medium severity escalation of privilege vulnerability in the Intel(R) LLM Library for PyTorch. It involves a protection mechanism failure in user applications running in Ring 3, potentially allowing an unprivileged adversary with some privileged user access to escalate privileges via a low complexity local attack requiring passive user interaction. The vulnerability impacts confidentiality, integrity, and availability at a high level within the vulnerable system context. No specific affected versions or patches are currently identified.
CVSS v4.0
Score 5.4medium
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability in the Intel(R) LLM Library for PyTorch arises from a failure in protection mechanisms within user applications operating in Ring 3. An adversary with unprivileged software combined with a privileged user can exploit this vulnerability locally with low complexity and passive user interaction to escalate privileges. The CVSS 4.0 base score is 5.4, reflecting medium severity, with high impact on confidentiality, integrity, and availability within the vulnerable system. No vendor remediation level or patch information is provided, and no known exploits are reported in the wild.
Potential Impact
The vulnerability may allow escalation of privilege, potentially compromising the confidentiality, integrity, and availability of the affected system at a high level. However, the subsequent impact on system confidentiality, integrity, and availability beyond the immediate vulnerable context is reported as none. This indicates the risk is contained within the affected application or process context.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or temporary workaround has been documented at this time.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- intel
- Date Reserved
- 2026-01-13T04:00:20.789Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a7b5470bf8831d539106b95
Added to database: 08/11/2026, 16:57:20 UTC
Last enriched: 08/11/2026, 23:59:12 UTC
Last updated: 08/12/2026, 01:03:11 UTC
Views: 5
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