What is CVE-2026-76656?

CVE-2026-76656 is a medium-severity vulnerability in Hewlett Packard Enterprise HPE Nonstop Tcp/ip Utilities, classified under Missing Authentication for Critical Function. CVSS score: 5.3/10. Published 2026-10-15.

How severe is CVE-2026-76656?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Auth bypass in Hewlett Packard Enterprise HPE Nonstop Tcp/ip Utilities

CVE-2026-76656

A vulnerability in HPE NonStop TCP/IP UTILITIES could allow an unauthenticated remote attacker to cause a denial of service when traceroute is executed under certain conditions.

Vulnerability class: Broken Authentication

Published 2026-10-15 · last modified 2026-10-15.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Hewlett Packard Enterprise HPE Nonstop Tcp/ip Utilities — versions T8602L01^BAA and earlier

Weakness classification (CWE)

CWE-306 — Missing Authentication for Critical Function

References

support.hpe.com/hpesc/public/docDisplay

Frequently asked questions

What is CVE-2026-76656?: CVE-2026-76656 is a medium-severity vulnerability in Hewlett Packard Enterprise HPE Nonstop Tcp/ip Utilities, classified under Missing Authentication for Critical Function. CVSS score: 5.3/10. Published 2026-10-15.
How severe is CVE-2026-76656?: Medium severity. CVSS v3 base score is 5.3 out of 10.