Path Traversal in Arubanetworks Fabric Composer

CVE-2026-73737

An unauthenticated path traversal vulnerability exists in the API endpoint of HPE Networking Fabric Composer. Successful exploitation could allow an unauthenticated adjacent attacker to manipulate user generated files, potentially leading to unauthorized changes in critical system configurations, if certain preconditions outside of the attacker's control are met.

Vulnerability class: Path Traversal (Directory Traversal)

Published · last modified .

CVSS v3 metric

CVSS v3 base score 4.8 (Medium). Vector: CVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N.

EPSS exploit prediction

EPSS: 0.002 (10.7th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 11th percentile — 10.7% 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-2026-73737: held from 0.001 to 0.002.

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

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-73737?
CVE-2026-73737 is a medium-severity vulnerability in Arubanetworks Fabric Composer, classified under Path Traversal. CVSS score: 4.8/10. Published 2026-09-01.
How severe is CVE-2026-73737?
Medium severity. CVSS v3 base score is 4.8 out of 10.