---
id: CVE-2026-76663
title: "A stack-based buffer overflow vulnerability in\_HPE NonStop TELSERV can cause memory corruption that may result in DoS."
summary: "A stack-based buffer overflow vulnerability in\_HPE NonStop TELSERV can cause memory corruption that may result in DoS."
severity: high
cvss: 7.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'
cwe:
  - CWE-121
published: '2026-10-15'
updated: '2026-10-15'
sourceUpdated: '2026-10-15T03:17:11.233'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-76663'
references:
  - url: >-
      https://support.hpe.com/hpesc/public/docDisplay?docId=hpesbns05148en_us&docLocale=en_US
    label: security-alert@hpe.com
tags:
  - nvd
  - cve.org
ingestedAt: '2026-10-15T03:30:12.929Z'
vendor: Hewlett Packard Enterprise
product: HPE NonStop TELSERV
affected:
  - hpe_nonstop_telserv T9553L01^BAJ and earlier
---

## Overview

A stack-based buffer overflow vulnerability in HPE NonStop TELSERV can cause memory corruption that may result in DoS.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.