CVE-2026-76656Network attack vector

Unauthenticated denial of service during traceroute execution

Published Oct 15, 2026 · Updated Oct 15, 2026

Denial of service in HPE NonStop TCP/IP Utilities allows remote attackers to interrupt service when traceroute runs under certain conditions. The supplied advisory identifies T8602L01^BAA and earlier but does not disclose the faulty operation or triggering input in traceroute. Authentication is not required; the additional execution conditions and whether the interruption is a hang, crash, or reboot remain unspecified.

CVSS severityUnavailable
Unscored
EPSS probability0.16%
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 when traceroute runs under certain conditions. The supplied advisory identifies T8602L01^BAA and earlier but does not disclose the faulty operation or triggering input in traceroute. Authentication is not required; the additional execution conditions and whether the interruption is a hang, crash, or reboot remain unspecified.

The record

CVE
CVE-2026-76656
Published
Oct 15, 2026
Updated
Oct 15, 2026
Vendor
Hewlett Packard Enterprise
Product
HPE NonStop TCP/IP Utilities
Classifications
Unavailable
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

No CVSS assessment is available in this record.

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

No sourced classifications are available.

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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