Vulnerability in Hewlett Packard Enterprise (HPE) Instant On

CVE-2026-76730

An authentication bypass vulnerability exists in the PAPI protocol of HPE Networking Instant ON APs that could allow an unauthenticated adjacent attacker to circumvent existing authentication controls. Successful exploitation could allow an attacker to circumvent certain existing authentication mechanisms and send unauthorized network traffic to the target device.

Published · last modified .

CVSS v3 metric

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

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

References

Frequently asked questions

What is CVE-2026-76730?
CVE-2026-76730 is a medium-severity vulnerability in Hewlett Packard Enterprise (HPE) Instant On. CVSS score: 6.5/10. Published 2026-09-29.
How severe is CVE-2026-76730?
Medium severity. CVSS v3 base score is 6.5 out of 10.