CVE-2026-76730: Hewlett Packard Enterprise HPE Instant On

Medium severity, CVSS 6.5. EPSS: 0.2% chance of exploitation in the next 30 days.

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.

Affected products

• Hewlett Packard Enterprise HPE Instant On: from 0.0.0.0, up to and including 3.4.1.0

Published 2026-09-29. Last modified 2026-09-30.