What is CVE-2026-76664?

CVE-2026-76664 is a medium-severity vulnerability in Hewlett Packard Enterprise HPE Nonstop Expand, classified under Out-of-bounds Read. CVSS score: 6.4/10. Published 2026-10-15.

How severe is CVE-2026-76664?

Medium severity. CVSS v3 base score is 6.4 out of 10.

Out-of-bounds Read in Hewlett Packard Enterprise HPE Nonstop Expand

CVE-2026-76664

A security vulnerability in HPE NonStop EXPAND may result in out-of-bounds memory read/write operations

Vulnerability class: Buffer Overflow

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

CVSS v3 metric

CVSS v3 base score 6.4 (Medium). Vector: CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:L/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 Expand — versions T9057L02^AIG and earlier

Weakness classification (CWE)

CWE-125 — Out-of-bounds Read

References

support.hpe.com/hpesc/public/docDisplay

Frequently asked questions

What is CVE-2026-76664?: CVE-2026-76664 is a medium-severity vulnerability in Hewlett Packard Enterprise HPE Nonstop Expand, classified under Out-of-bounds Read. CVSS score: 6.4/10. Published 2026-10-15.
How severe is CVE-2026-76664?: Medium severity. CVSS v3 base score is 6.4 out of 10.