Resource exhaustion in Arubanetworks Fabric Composer

CVE-2026-73728

Denial-of-service vulnerabilities exist in the API of HPE Networking Fabric Composer that could allow an authenticated low privilege operator user to cause a denial of service. Successful exploitation could allow an attacker to interrupt the normal operation of the affected service.

Vulnerability class: DoS (Denial of Service)

Published · last modified .

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.004 (34.8th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 35th percentile — 34.8% 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-2026-73728: held from 0.002 to 0.004.

EPSS over last 30 days · oldest: 0.002 · newest: 0.004 · change: +0.002

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-73728?
CVE-2026-73728 is a medium-severity vulnerability in Arubanetworks Fabric Composer, classified under Uncontrolled Resource Consumption. CVSS score: 6.5/10. Published 2026-09-01.
How severe is CVE-2026-73728?
Medium severity. CVSS v3 base score is 6.5 out of 10.