CVE-2026-19766

CRITICAL 9.6

Authentication Bypass leads to Administrative control of adjacent network hosts in HPE Networking Fabric Composer

CVSS Score

9.6

EPSS Score

0.0%

EPSS Percentile

0th

An authentication bypass vulnerability exists in the underlying operating system of HPE Networking Fabric Composer. Successful exploitation could allow an unauthenticated adjacent attacker to execute arbitrary code as a privileged user on the underlying operating system, leading to complete compromise of the AFC host.

Vendor	hewlett packard enterprise (hpe)
Product	fabric composer
Published	Sep 1, 2026
Last Updated	Sep 1, 2026

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CVSS v3 Breakdown

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

Attack Vector

Adjacent

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Changed

Confidentiality

High

Integrity

High

Availability

High

Affected Versions

Hewlett Packard Enterprise (HPE) / Fabric Composer

7.0.0 ≤ 7.3.3

References

NVD ↗ CVE.org ↗ EPSS Data ↗

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

Credits

🔍 This vulnerability was discovered by internal security research at HPE Networking.