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CVE-2026-23822

Unauthenticated XML External Entity Injection in AOS-8 Instant allows Denial of Service

Published: May 12, 2026Updated: May 13, 2026 Sources: CVE List NVDCWE-776
NVD MITRE
5.3CVSSMEDIUM
EPSS Score
0.3%
Top 82.6%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
No Fix Available

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

CVSS Vector Breakdown

AV:NAC:HPR:NUI:RS:UC:NI:NA:H
Exploitability
AV:NAttack Vector
Network
AC:HAttack Complexity
High
PR:NPrivileges Required
None
UI:RUser Interaction
Required
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:HAvailability
High
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Weaknesses

CWE-776

Affected Products

ArubaOS (AOS)Hewlett Packard Enterprise (HPE)Hardware Firmware
hewlett packard enterprise (hpe)commercialUSHardware Firmwareaka hewlett packard enterprise

Attack Graph

Products CVE Techniques Tactics

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Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.

MITRE ATT&CK

1 technique
Impact
View detailed technique mapping

References

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

Timeline

Published
May 12, 2026
Last Updated
May 13, 2026

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