Authentication Bypass in HPE Networking Fabric Composer API allows Administrative Access
Priority MEDIUM 50CWE-287Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-287.
Summary
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.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00746 55th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Hewlett Packard Enterprise (HPE) | Fabric Composer | 7.0.0 – 7.3.3 | — | No fix listed | CNA |
- Fabric Composer VendorHewlett Packard Enterprise (HPE) Affected 7.0.0 – 7.3.3 Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:arubanetworks:fabric_composer:*:*:*:*:*:*:*:* | before 7.3.4 | Vulnerable | Arubanetworks |
- cpe:2.3:a:arubanetworks:fabric_composer:*:*:*:*:*:*:*:* Versions before 7.3.4 Vulnerable ·Arubanetworks
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-76657
- 2026-10-03 Alias added: GHSA-3634-p2j5-54h2
References
More Hewlett Packard Enterprise (HPE) vulnerabilities
- TI-2025-25062 A remote code execution issue exists in HPE OneView. KEVCVSS 3.1CRITICAL 10.0
- TI-2017-03684 Improper privilege management in Intel Active Mangement Technology, Intel Small Business… KEVCVSS 3.1CRITICAL 9.8
- TI-2015-04610 Assertion failure in ISC BIND named via TKEY queries KEVCVSS 3.1HIGH 7.5
- TI-2024-35876 Path traversal in Hewlett Packard Enterprise (HPE) HPE Insight Remote Support CVSS 3.1CRITICAL 9.8
- TI-2020-05748 A security vulnerability in HPE Smart Update Manager (SUM) prior to version 8.5.6 could… CVSS 3.1CRITICAL 9.8
- TI-2024-35875 XML injection in Hewlett Packard Enterprise (HPE) HPE Insight Remote Support CVSS 3.1HIGH 7.5
Sources
- CVE-2026-76657 · CVE Program
- CVE-2026-76657 · NVD
- FIRST EPSS
- GHSA-3634-p2j5-54h2 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences