CVE-2026-73728Network attack vector

Authenticated service interruption via undisclosed API flaws

Published Sep 1, 2026 · Updated Sep 2, 2026

Denial of service in the API of HPE Aruba Networking Fabric Composer 7.0.0 through 7.3.3 allows remote authenticated users to interrupt service. HPE has not disclosed the affected API endpoints or the resource-handling errors triggered by crafted requests. Low-privilege operator access is required, and successful exploitation interrupts normal service operation without reported data exposure or modification.

CVSS severity6.5
Medium
EPSS probability0.24%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Denial of service in the API of HPE Aruba Networking Fabric Composer 7.0.0 through 7.3.3 allows remote authenticated users to interrupt service. HPE has not disclosed the affected API endpoints or the resource-handling errors triggered by crafted requests. Low-privilege operator access is required, and successful exploitation interrupts normal service operation without reported data exposure or modification.

The record

CVE
CVE-2026-73728
Published
Sep 1, 2026
Updated
Sep 2, 2026
Vendor
Hewlett Packard Enterprise (HPE)
Product
HPE Aruba Networking Fabric Composer
Classifications
CWE-400, T1499.004
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 1, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 2, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=7.0.0 <=7.3.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Hewlett Packard Enterprise (HPE) · HPE Aruba Networking Fabric Composerversion=7.0.0 <=7.3.3

Published CVSS scores

6.5Hewlett Packard EnterpriseCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-400Uncontrolled Resource Consumption
T1499.004Application or System Exploitation

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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