---
id: CVE-2026-76738
title: >-
  A buffer overflow vulnerability exists in the API endpoint of HPE Networking
  Instant On that could allow an authenticated attacker with administrative
  privileges to cause a denial of service
summary: >-
  A buffer overflow vulnerability exists in the API endpoint of HPE Networking
  Instant On that could allow an authenticated attacker with administrative
  privileges to cause a denial of service. Successful exploitation could allow
  an attack…
severity: low
cvss: 2.7
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L'
vendor: Hewlett Packard Enterprise (HPE)
product: Instant ON
affected:
  - instant_on >= 0.0.0.0 <= 3.4.1.0
published: '2026-09-29'
updated: '2026-09-29'
sourceUpdated: '2026-09-29T21:39:02.570'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-76738'
references:
  - url: >-
      https://support.hpe.com/hpesc/public/docDisplay?docId=hpesbnw05150en_us&docLocale=en_US
    label: security-alert@hpe.com
tags:
  - nvd
  - cve.org
ingestedAt: '2026-09-29T19:44:04.152Z'
---

## Overview

A buffer overflow vulnerability exists in the API endpoint of HPE Networking Instant On that could allow an authenticated attacker with administrative privileges to cause a denial of service. Successful exploitation could allow an attacker to interrupt the normal operation of the affected service, which recovers without manual intervention.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.