What is CVE-2026-76662?

CVE-2026-76662 is a medium-severity vulnerability in Hewlett Packard Enterprise HPE Nonstop Telserv, classified under Stack-based Buffer Overflow. CVSS score: 5.9/10. Published 2026-10-15.

How severe is CVE-2026-76662?

Medium severity. CVSS v3 base score is 5.9 out of 10.

Buffer overflow in Hewlett Packard Enterprise HPE Nonstop Telserv

CVE-2026-76662

A buffer overflow vulnerability in HPE NonStop TELSERV can cause memory corruption and DoS.

Vulnerability class: Buffer Overflow

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

CVSS v3 metric

CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/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 Telserv — versions T9553L01^BAJ and earlier

Weakness classification (CWE)

CWE-121 — Stack-based Buffer Overflow

References

support.hpe.com/hpesc/public/docDisplay

Frequently asked questions

What is CVE-2026-76662?: CVE-2026-76662 is a medium-severity vulnerability in Hewlett Packard Enterprise HPE Nonstop Telserv, classified under Stack-based Buffer Overflow. CVSS score: 5.9/10. Published 2026-10-15.
How severe is CVE-2026-76662?: Medium severity. CVSS v3 base score is 5.9 out of 10.