Authentication Bypasses in API allow Continued Authenticated Access in HPE Networking Fabric Composer

published 2026-09-01 2mo ago modified 2026-09-03 2mo ago also EUVD-2026-69460

cvss: 5.4; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.3%; EPSS 0.3% chance of exploitation in 30 days, percentile 22%
public exploits: 0; none known

Authentication bypasses in the API of HPE Networking Fabric Composer could allow an authenticated low privilege operator user to circumvent existing authentication controls. Successful exploitation could allow an attacker to retain limited access to the affected system after that access should have been revoked.

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CISA SSVC

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

Exploit prediction

0.29% chance of exploitation in the next 30 days, higher than 22% of all scored CVEs (FIRST EPSS, 2026-11-11).

CVSS scores

assigned by	version	score	vector
CNA	3.1	5.4	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

Affected products

Hewlett Packard Enterprise (HPE) Fabric Composer

Classification

Weakness

CWE-287 Improper Authentication

References

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

Sources

CVE List CVE-2026-73733
NVD CVE-2026-73733

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