CVE-2026-23822

MEDIUM

HPE ArubaOS AOS-8 Instant - XML External Entity Denial of Service

Title source: manual

Description

A vulnerability in the XML handling component of AOS-8 DHCP services could allow an unauthenticated remote attacker to trigger a denial-of-service condition. Successful exploitation could allow an attacker to cause excessive resource consumption upon user interaction, leading to service disruption or reduced availability of the affected system. NOTE: This vulnerability only impacts Access Points running AOS Instant 8.x.x.x

References (1)

Core 1

Core References

https://support.hpe.com/hpesc/public/docDisplay?docId=hpesbnw05049en_us&docLocale=en_US

Scores

CVSS v3 5.3

EPSS 0.0026

EPSS Percentile 17.4%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact partial

Details

CWE

CWE-776

Status published

Products (3)

Hewlett Packard Enterprise (HPE)/ArubaOS (AOS) 8.10.0.0 - 8.10.0.21

Hewlett Packard Enterprise (HPE)/ArubaOS (AOS) 8.12.0.0 - 8.12.0.6

Hewlett Packard Enterprise (HPE)/ArubaOS (AOS) 8.13.0.0 - 8.13.1.1

Published May 12, 2026

Tracked Since May 13, 2026