CVE-2026-73711
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Privilege Escalation in HPE Networking Fabric Composer API

Vulnerability report for CVE-2026-73711, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.

Publication date: 2026-09-01

Last updated on: 2026-09-02

Assigner: Hewlett Packard Enterprise (HPE)

Description

A privilege escalation vulnerability exists in the API endpoint of HPE Networking Fabric Composer. Successful exploitation could allow an unauthenticated remote attacker to gain administrative privileges leading to complete compromise of the HPE Networking Fabric Composer host.

CVSS Scores

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Meta Information

Published
2026-09-01
Last Modified
2026-09-02
Generated
2026-09-22
AI Q&A
2026-09-02
EPSS Evaluated
2026-09-20
NVD
EUVD

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
arubanetworks fabric_composer to 7.3.4 (exc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-269 The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor.

Attack-Flow Graph

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Executive Summary

This is a privilege escalation vulnerability in the API endpoint of HPE Networking Fabric Composer. An unauthenticated remote attacker could exploit it to gain administrative privileges, potentially leading to full compromise of the host system.

Detection Guidance

Detecting this vulnerability requires checking for unauthorized access to the HPE Networking Fabric Composer API endpoint. Monitor network traffic for unusual requests to the API, especially those attempting privilege escalation. Inspect logs for administrative actions performed by unauthenticated users. Ensure the API endpoint is not exposed to untrusted networks.

Impact Analysis

If exploited, an attacker could take complete control of the HPE Networking Fabric Composer host, allowing them to manipulate configurations, access sensitive data, or disrupt operations.

Compliance Impact

This vulnerability allows unauthenticated remote attackers to gain administrative privileges, which could lead to unauthorized access to sensitive data. This may violate compliance requirements under GDPR (data protection) and HIPAA (healthcare data security) by enabling unauthorized data access or modification.

Mitigation Strategies

Immediately restrict access to the HPE Networking Fabric Composer API endpoint to trusted networks or IP addresses. Disable or block unauthenticated access to the vulnerable API endpoint until a patch is applied.

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