CVE-2026-73759

Service interruption via crafted network packets

Published Sep 1, 2026 · Updated Sep 2, 2026

Denial of service in HPE AOS-CX affected releases allows remote attackers to interrupt switch operation via specially crafted packets. HPE has not disclosed the affected protocol or service, the crafted packet fields, or the incorrect operation performed during packet processing. Exploitation requires adjacent-network reachability but no credentials or user interaction; the documented consequence is interruption of normal device operation.

CVSS severity6.5
Medium
EPSS probability0.20%
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 HPE AOS-CX affected releases allows remote attackers to interrupt switch operation via specially crafted packets. HPE has not disclosed the affected protocol or service, the crafted packet fields, or the incorrect operation performed during packet processing. Exploitation requires adjacent-network reachability but no credentials or user interaction; the documented consequence is interruption of normal device operation.

The record

CVE
CVE-2026-73759
Published
Sep 1, 2026
Updated
Sep 2, 2026
Vendor
Hewlett Packard Enterprise (HPE)
Product
AOS-CX
Classifications
CWE-400, T1499.004
Attack vector
adjacent
Privileges
unauthenticated

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=10.10.0000 <=10.10.1180
  2. Affected versionversion=10.13.0000 <=10.13.1180
  3. Affected versionversion=10.16.0000 <=10.16.1051
  4. Affected versionversion=10.17.0000 <=10.17.1021
  5. Affected versionversion=10.18.0000 <=10.18.0001

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

Hewlett Packard Enterprise (HPE) · AOS-CXversion=10.10.0000 <=10.10.1180; version=10.13.0000 <=10.13.1180; version=10.16.0000 <=10.16.1051; version=10.17.0000 <=10.17.1021; version=10.18.0000 <=10.18.0001

Published CVSS scores

6.5Hewlett Packard EnterpriseCVSS:3.1/AV:A/AC:L/PR:N/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)
Vectoradjacent
Privilegesunauthenticated
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.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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