---
id: CVE-2026-79831
title: >-
  A heap buffer overflow in HPE NonStop Posix User Threads may allow arbitrary
  code execution.
summary: >-
  A heap buffer overflow in HPE NonStop Posix User Threads may allow arbitrary
  code execution.
severity: medium
cvss: 6.6
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:H'
cwe:
  - CWE-122
vendor: Hewlett Packard Enterprise
product: HPE NonStop Posix User Threads
affected:
  - hpe_nonstop_posix_user_threads T1280L02^ACG and earlier
published: '2026-10-15'
updated: '2026-10-15'
sourceUpdated: '2026-10-15T14:17:28.823'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-79831'
references:
  - url: >-
      https://support.hpe.com/hpesc/public/docDisplay?docId=hpesbns05148en_us&docLocale=en_US
    label: security-alert@hpe.com
tags:
  - nvd
  - cve.org
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-10-15T13:16:47.162711Z'
ingestedAt: '2026-10-15T11:00:41.637Z'
---

## Overview

A heap buffer overflow in HPE NonStop Posix User Threads may allow arbitrary code execution.

## Remediation

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