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Vulnerability Details :

CVE-2026-23822

Summary
Assigner-hpe
Assigner Org ID-eb103674-0d28-4225-80f8-39fb86215de0
Published At-12 May, 2026 | 18:37
Updated At-12 May, 2026 | 19:25
Rejected At-
Credits

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

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

Vendors
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Not available
Products
-
Metrics (CVSS)
VersionBase scoreBase severityVector
Weaknesses
Attack Patterns
Solution/Workaround
References
HyperlinkResource Type
EPSS History
Score
Latest Score
-
N/A
No data available for selected date range
Percentile
Latest Percentile
-
N/A
No data available for selected date range
Stakeholder-Specific Vulnerability Categorization (SSVC)
▼Common Vulnerabilities and Exposures (CVE)
cve.org
Assigner:hpe
Assigner Org ID:eb103674-0d28-4225-80f8-39fb86215de0
Published At:12 May, 2026 | 18:37
Updated At:12 May, 2026 | 19:25
Rejected At:
▼CVE Numbering Authority (CNA)
Unauthenticated XML External Entity Injection in AOS-8 Instant allows Denial of Service

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

Affected Products
Vendor
Hewlett Packard Enterprise (HPE)Hewlett Packard Enterprise (HPE)
Product
ArubaOS (AOS)
Default Status
affected
Versions
Affected
  • From 8.13.0.0 through 8.13.1.1 (semver)
  • From 8.12.0.0 through 8.12.0.6 (semver)
  • From 8.10.0.0 through 8.10.0.21 (semver)
Metrics
VersionBase scoreBase severityVector
3.15.3MEDIUM
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H
Version: 3.1
Base score: 5.3
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions

Configurations

Workarounds

Exploits

Credits

reporter
Nicholas Starke
Timeline
EventDate
Replaced By

Rejected Reason

References
HyperlinkResource
https://support.hpe.com/hpesc/public/docDisplay?docId=hpesbnw05049en_us&docLocale=en_US
N/A
Hyperlink: https://support.hpe.com/hpesc/public/docDisplay?docId=hpesbnw05049en_us&docLocale=en_US
Resource: N/A
▼Authorized Data Publishers (ADP)
CISA ADP Vulnrichment
Affected Products
Problem Types
TypeCWE IDDescription
CWECWE-776CWE-776 Improper Restriction of Recursive Entity References in DTDs ('XML Entity Expansion')
Type: CWE
CWE ID: CWE-776
Description: CWE-776 Improper Restriction of Recursive Entity References in DTDs ('XML Entity Expansion')
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions

Configurations

Workarounds

Exploits

Credits

Timeline
EventDate
Replaced By

Rejected Reason

References
HyperlinkResource
Information is not available yet
▼National Vulnerability Database (NVD)
nvd.nist.gov
Source:security-alert@hpe.com
Published At:12 May, 2026 | 19:16
Updated At:12 May, 2026 | 20:16

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

CISA Catalog
Date AddedDue DateVulnerability NameRequired Action
N/A
Date Added: N/A
Due Date: N/A
Vulnerability Name: N/A
Required Action: N/A
Metrics
TypeVersionBase scoreBase severityVector
Secondary3.15.3MEDIUM
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H
Type: Secondary
Version: 3.1
Base score: 5.3
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H
CPE Matches

Weaknesses
CWE IDTypeSource
CWE-776Secondary134c704f-9b21-4f2e-91b3-4a467353bcc0
CWE ID: CWE-776
Type: Secondary
Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0
Evaluator Description

Evaluator Impact

Evaluator Solution

Vendor Statements

References
HyperlinkSourceResource
https://support.hpe.com/hpesc/public/docDisplay?docId=hpesbnw05049en_us&docLocale=en_USsecurity-alert@hpe.com
N/A
Hyperlink: https://support.hpe.com/hpesc/public/docDisplay?docId=hpesbnw05049en_us&docLocale=en_US
Source: security-alert@hpe.com
Resource: N/A

Change History

0
Information is not available yet

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