CVE-2026-79831: CWE-122 Heap-based buffer overflow in Hewlett Packard Enterprise HPE NonStop Posix User Threads
Description
CVE-2026-79831 is a heap-based buffer overflow vulnerability in Hewlett Packard Enterprise's HPE NonStop Posix User Threads. This flaw may allow an attacker with local privileges to execute arbitrary code. The vulnerability has a medium severity rating with a CVSS score of 6.6. No specific affected versions or patches have been disclosed yet.
CVSS v3.1
Score 6.6medium
Affected software
Hewlett Packard Enterprise
HPE NonStop Posix User Threads
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves a heap buffer overflow in the HPE NonStop Posix User Threads component. Exploitation could lead to arbitrary code execution by an attacker with local access. The CVSS 3.1 vector indicates low attack complexity, low privileges required, no user interaction, and impacts confidentiality, integrity, and availability to a limited extent. No vendor advisory or patch information is currently available.
Potential Impact
An attacker with local privileges could exploit this heap overflow to execute arbitrary code, potentially compromising system integrity and availability. Confidentiality impact is limited. There is no evidence of active exploitation in the wild.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, limit local access to trusted users and monitor for unusual activity related to the HPE NonStop Posix User Threads component.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- hpe
- Date Reserved
- 2026-08-25T14:47:01.940Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6ad0afb72cdf04f656289600
Added to database: 10/15/2026, 10:49:27 UTC
Last enriched: 10/15/2026, 11:03:16 UTC
Last updated: 10/15/2026, 11:08:12 UTC
Views: 4
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