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

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Summary

CVECVE-2026-23822
StatePUBLISHED
Assignerhpe
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-05-12 19:16:28 UTC
Updated2026-05-12 20:16:31 UTC
DescriptionA 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

Risk And Classification

Primary CVSS: v3.1 5.3 MEDIUM from [email protected]

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

Problem Types: CWE-776 | CWE-776 CWE-776 Improper Restriction of Recursive Entity References in DTDs ('XML Entity Expansion')

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary5.3MEDIUMCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H
3.1CNACVSS5.3MEDIUMCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

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

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Hewlett Packard Enterprise HPE ArubaOS AOS affected 8.13.0.0 8.13.1.1 semver Not specified
CNA Hewlett Packard Enterprise HPE ArubaOS AOS affected 8.12.0.0 8.12.0.6 semver Not specified
CNA Hewlett Packard Enterprise HPE ArubaOS AOS affected 8.10.0.0 8.10.0.21 semver Not specified

References

ReferenceSourceLinkTags
support.hpe.com/hpesc/public/docDisplay [email protected] support.hpe.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: Nicholas Starke (en)

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