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Vulnerability record · CVE-2026-76657 · published 1 September 2026

CVE-2026-76657: Arubanetworks fabric composer improper authentication vulnerability

Arubanetworks · Fabric Composer

Vulnerabilities have been identified in the API of HPE Networking Fabric Composer that could potentially allow an unauthenticated remote attacker to circumvent existing authentication controls. Successful exploitation could allow an attacker to gain administrative privileges leading to complete compromise of the HPE Networking Fabric Composer host.

10.0 CVSS 3.1 Critical EPSS 0.75% · top 47.0% CWE-287 · Improper authentication
10.0CVSS 3.1 base score
0.75%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
1References
2 Sep 2026Last modified by NVD

Description

Vulnerabilities have been identified in the API of HPE Networking Fabric Composer that could potentially allow an unauthenticated remote attacker to circumvent existing authentication controls. Successful exploitation could allow an attacker to gain administrative privileges leading to complete compromise of the HPE Networking Fabric Composer host.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://support.hpe.com/hpesc/public/docDisplay?docId=hpesbnw05133en_us&docLocale=en_US Vendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

10.0CVE-2026-76658Arubanetworks fabric composer improper authentication vulnerabilityA vulnerability has been identified in the SSH daemon of HPE Networking Fabric Composer that could allow an unauthenticated remote attacker to gain a…EPSS 0.75%9.6CVE-2026-19766Arubanetworks fabric composer improper authentication vulnerabilityAn authentication bypass vulnerability exists in the underlying operating system of HPE Networking Fabric Composer. Successful exploitation could all…EPSS 0.26%9.0CVE-2026-73700Arubanetworks fabric composer cross-site scripting vulnerabilityA vulnerability in the web-based management interface of HPE Networking Fabric Composer could allow an authenticated low privilege operator user to c…EPSS 0.42%9.0CVE-2026-73701Arubanetworks fabric composer code injection vulnerabilityAn unauthenticated remote code execution vulnerability exists in the underlying operating system of HPE Networking Fabric Composer and could be explo…EPSS 0.67%8.8CVE-2026-73702Arubanetworks fabric composer incorrect authorization vulnerabilityA privilege escalation vulnerability exists in the API of HPE Networking Fabric Composer. Successful exploitation could allow an authenticated low pr…EPSS 0.42%8.8CVE-2026-73703Arubanetworks fabric composer cross-site scripting vulnerabilityA vulnerability in the web-based management interface of HPE Networking Fabric Composer could allow an unauthenticated adjacent attacker to conduct a…EPSS 0.34%8.8CVE-2026-73704Arubanetworks fabric composer command injection vulnerabilityA command sanitization bypass exists in the API of HPE Networking Fabric Composer. Successful exploitation could allow an authenticated low privilege…EPSS 0.53%8.8CVE-2026-73705Arubanetworks fabric composer vulnerabilityAn arbitrary file write vulnerability in the API of HPE Networking Fabric Composer could allow an authenticated low privilege operator user to escala…EPSS 0.62%

Source: NIST National Vulnerability Database (record CVE-2026-76657), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.