Unauthenticated Path Traversal in HPE Networking Fabric Composer API Endpoint Allows Unauthorized File Modification

published 2026-09-01 2 mo ago modified 2026-09-03 2 mo ago also EUVD-2026-69464

cvss: 4.8; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.2%; EPSS 0.2% chance of exploitation in 30 days, percentile 11%
public exploits: 0; none known

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.

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: partial
Assessed: 2 mo ago (2026-09-01)

Exploit prediction

0.21% chance of exploitation in the next 30 days, higher than 11% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	4.8	CVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N

Affected products

Hewlett Packard Enterprise (HPE) Fabric Composer

Classification

Weakness

CWE-22 Improper Limitation of a Pathname to a Restricted Directory

References

support.hpe.com /hpesc/public/docDisplay?docId=hpesbnw05133en_us&docLocale=en_US
vendor-advisory

Sources

CVE List CVE-2026-73737
NVD CVE-2026-73737

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Summary