What is CVE-2026-73742?

CVE-2026-73742 is a medium-severity vulnerability in Hewlett Packard Enterprise (HPE) Fabric Composer, classified under Authentication Bypass by Spoofing. CVSS score: 4.3/10. Published 2026-09-01.

How severe is CVE-2026-73742?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Vulnerability in Hewlett Packard Enterprise (HPE) Fabric Composer

CVE-2026-73742

A vulnerability in an API endpoint of HPE Networking Fabric Composer could allow an authenticated low privilege operator user to spoof the source address attributed to their requests. Successful exploitation could allow an attacker to cause inaccurate attribution information to be recorded on the affected system.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N.

Affected products

Hewlett Packard Enterprise (Hpe) Fabric Composer

Weakness classification (CWE)

CWE-290 — Authentication Bypass by Spoofing

References

security-alert@hpe.com

Frequently asked questions

What is CVE-2026-73742?: CVE-2026-73742 is a medium-severity vulnerability in Hewlett Packard Enterprise (HPE) Fabric Composer, classified under Authentication Bypass by Spoofing. CVSS score: 4.3/10. Published 2026-09-01.
How severe is CVE-2026-73742?: Medium severity. CVSS v3 base score is 4.3 out of 10.