CVE-2026-20755
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Protection Mechanism Failure in LLM Scaler Leads to Privilege Escalation

Vulnerability report for CVE-2026-20755, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.

Publication date: 2026-08-11

Last updated on: 2026-08-12

Assigner: Intel Corporation

Description

Protection mechanism failure for some LLM Scaler software 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.

CVSS Scores

EPSS Scores

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Meta Information

Published
2026-08-11
Last Modified
2026-08-12
Generated
2026-09-01
AI Q&A
2026-08-11
EPSS Evaluated
2026-08-30
NVD
EUVD

Affected Vendors & Products

Currently, no data is known.

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-693 The product does not use or incorrectly uses a protection mechanism that provides sufficient defense against directed attacks against the product.

Attack-Flow Graph

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Executive Summary

This vulnerability is a protection mechanism failure in some LLM Scaler software within Ring 3 User Applications. It allows an unprivileged attacker with a privileged user account to escalate privileges through a low-complexity attack. The attack requires local access, passive user interaction, and no special internal knowledge.

Detection Guidance

The provided CVE details do not include specific detection methods or commands. Detection would require monitoring for privilege escalation attempts in LLM Scaler software within Ring 3 user applications. Check for unusual system calls, unauthorized privilege changes, or suspicious user activity logs.

Impact Analysis

This vulnerability can lead to high impacts on confidentiality, integrity, and availability of the system. It may result in complete loss of system confidentiality, integrity, and availability, potentially allowing attackers to gain full control over the affected system.

Compliance Impact

The vulnerability may lead to high impacts on confidentiality, integrity, and availability of the system, potentially resulting in loss of all three. This could violate compliance requirements under GDPR (data protection), HIPAA (health data security), and other standards by enabling unauthorized access or system compromise.

Mitigation Strategies

Apply vendor-provided patches or updates for the LLM Scaler software. Ensure privileged user access is restricted and monitor for unusual privilege escalation attempts. Review and enforce least-privilege principles for user applications.

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