---
id: CVE-2026-79886
title: >-
  Unauthenticated Buffer Overflow Vulnerability leads to Denial-of-Service in
  AOS-8
summary: >-
  An unauthenticated buffer overflow vulnerability exists in the PAPI protocol
  of AOS-8. Successful exploitation could allow an unauthenticated remote
  attacker to disrupt the availability of the affected service on the
  controller, with a l…
severity: high
cvss: 8.2
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H'
cvssSource: cna
vendor: Hewlett Packard Enterprise (HPE)
product: ArubaOS (AOS)
affected:
  - arubaos_aos >= 8.13.0.0 <= 8.13.3.0
  - arubaos_aos >= 8.10.0.0 <= 8.10.0.23
published: '2026-10-22'
updated: '2026-10-23'
sourceUpdated: '2026-10-23T19:13:38.826Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-79886'
references:
  - url: >-
      https://support.hpe.com/hpesc/public/docDisplay?docId=hpesbnw05162en_us&docLocale=en_US
tags:
  - cve.org
epss: 0.00367
epssPercentile: 0.30355
ingestedAt: '2026-10-22T22:00:50.385Z'
---

## Overview

An unauthenticated buffer overflow vulnerability exists in the PAPI protocol of AOS-8. Successful exploitation could allow an unauthenticated remote attacker to disrupt the availability of the affected service on the controller, with a limited impact to its integrity.

## Affected

- `arubaos_aos >= 8.13.0.0 <= 8.13.3.0`
- `arubaos_aos >= 8.10.0.0 <= 8.10.0.23`

## Remediation

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