Open Redirect in Arubanetworks Fabric Composer

CVE-2026-73734

A vulnerability in the web-based management interface of HPE Networking Fabric Composer could allow an unauthenticated remote attacker to redirect users to an arbitrary URL.

Vulnerability class: Open Redirect

Published · last modified .

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.003 (23.5th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 24th percentile — 23.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2026-73734: held from 0.002 to 0.003.

EPSS over last 30 days · oldest: 0.002 · newest: 0.003 · change: +0.001

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-73734?
CVE-2026-73734 is a medium-severity vulnerability in Arubanetworks Fabric Composer, classified under URL Redirection to Untrusted Site (Open Redirect). CVSS score: 5.4/10. Published 2026-09-01.
How severe is CVE-2026-73734?
Medium severity. CVSS v3 base score is 5.4 out of 10.