CVE-2026-79831
Received Received - Intake

Heap Buffer Overflow in HPE NonStop Posix User Threads

Vulnerability report for CVE-2026-79831, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.

Publication date: 2026-10-15

Last updated on: 2026-10-15

Assigner: Hewlett Packard Enterprise (HPE)

Description

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

CVSS Scores

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Meta Information

Published
2026-10-15
Last Modified
2026-10-15
Generated
2026-10-15
AI Q&A
2026-10-15
EPSS Evaluated
N/A
NVD
EUVD

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
Hewlett Packard Enterprise HPE NonStop Posix User Threads T1280L02^ACG and earlier

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-122 A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().

Attack-Flow Graph

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Executive Summary

This vulnerability is a heap buffer overflow in HPE NonStop Posix User Threads. A heap buffer overflow occurs when a program writes more data to a buffer than it can hold, potentially corrupting adjacent memory. This can allow an attacker to execute arbitrary code on the affected system.

Impact Analysis

This vulnerability may allow an attacker with local access to execute arbitrary code on the system. This could lead to unauthorized data access, system crashes, or further compromise of the affected system. The impact depends on the privileges of the user running the vulnerable software.

Mitigation Strategies

Apply patches or updates provided by HPE for HPE NonStop Posix User Threads to address the heap buffer overflow. Monitor HPE security advisories for updates and restrict access to affected systems until patched.

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