CVE-2026-76741Network attack vector

Authenticated denial of service via interface buffer overflows

Published Oct 6, 2026 · Updated Oct 6, 2026

Buffer overflows in HPE ArubaOS-Switch 16.11.0000 through 16.11.0031 allow remote authenticated users to disrupt switch service. HPE identifies an affected interface but does not disclose its protocol, the mishandled input, or the operation that exceeds a buffer boundary. Authentication is required, and the published record does not specify whether the denial of service crashes, hangs, or reboots the switch.

CVSS severity6.5
Medium
EPSS probability0.39%
Next 30 days · Oct 19, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Buffer overflows in HPE ArubaOS-Switch 16.11.0000 through 16.11.0031 allow remote authenticated users to disrupt switch service. HPE identifies an affected interface but does not disclose its protocol, the mishandled input, or the operation that exceeds a buffer boundary. Authentication is required, and the published record does not specify whether the denial of service crashes, hangs, or reboots the switch.

The record

CVE
CVE-2026-76741
Published
Oct 6, 2026
Updated
Oct 6, 2026
Vendor
Hewlett Packard Enterprise (HPE)
Product
ArubaOS-Switch
Classifications
T1499.004
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Oct 6, 2026CVE publishedPublication date reported by the CVE source.
  2. Oct 6, 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=16.11.0000 <=16.11.0031

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Hewlett Packard Enterprise (HPE) · ArubaOS-Switchversion=16.11.0000 <=16.11.0031

Published CVSS scores

6.5Hewlett Packard Enterprise (HPE)CVSS: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.

Activity data is delayed. The latest report is Sep 28, 2026.

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

No observations available

Sep 22, 2026Sep 28, 2026
Latest reporting daySep 28, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1499.004Endpoint Denial of Service: Application 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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