CVE-2026-76659Network attack vector

Unauthenticated denial of service

Published Oct 15, 2026 · Updated Oct 15, 2026

Denial of service in HPE NonStop TCP/IP Utilities allows remote attackers to interrupt service through the finger daemon. The triggering input and faulty operation are undisclosed. Network access to an enabled daemon is required; the interruption mode, including whether it is a hang or crash, is unspecified.

CVSS severity7.5
High
EPSS probability0.30%
Next 30 days · Oct 19, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Denial of service in HPE NonStop TCP/IP Utilities allows remote attackers to interrupt service through the finger daemon. The triggering input and faulty operation are undisclosed. Network access to an enabled daemon is required; the interruption mode, including whether it is a hang or crash, is unspecified.

The record

CVE
CVE-2026-76659
Published
Oct 15, 2026
Updated
Oct 15, 2026
Vendor
Hewlett Packard Enterprise
Product
HPE NonStop TCP/IP Utilities
Classifications
CWE-306, CAPEC-469, T1499
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 15, 2026CVE publishedPublication date reported by the CVE source.
  2. Oct 15, 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=T8602L01^BAA and earlier

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Hewlett Packard Enterprise · HPE NonStop TCP/IP Utilitiesversion=T8602L01^BAA and earlier

Published CVSS scores

7.5Hewlett Packard EnterpriseCVSS:3.1/AV:N/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.

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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-306Missing Authentication for Critical Function
CAPEC-469HTTP DoS
T1499Endpoint Denial of Service

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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