CVE-2026-76723: Hewlett Packard Enterprise HPE Instant On

Critical severity, CVSS 9.6. EPSS: 0.3% chance of exploitation in the next 30 days.

Buffer overflow vulnerabilities exist in the affected interface of HPE Networking Instant ON APS that could allow an unauthenticated adjacent attacker to achieve remote code execution. Successful exploitation could allow an attacker to execute arbitrary commands on the underlying operating system.

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 2026-10-01.