CVE-2026-79831
A heap buffer overflow in HPE NonStop Posix User Threads may allow arbitrary code execution.
Published Oct 15, 2026 · corrected/updated Oct 15, 2026 · Hewlett Packard Enterprise HPE NonStop Posix User Threads · evidence confidence medium
A heap buffer overflow in HPE NonStop Posix User Threads may allow arbitrary code execution.
Grounded briefings
Catalog interpretations for three audiences. Each brief cites ingested metadata and the original advisories below. They are not independent research and they do not invent exploit steps.
Executive
CVE-2026-79831 is a medium public vulnerability record for Hewlett Packard Enterprise HPE NonStop Posix User Threads. It is not currently listed in the CISA Known Exploited catalog. Check the linked vendor or CERT advisories for patch status. This summary is a catalog interpretation of the ingested metadata and cites the original advisories below.
System administrator
Identify whether Hewlett Packard Enterprise HPE NonStop Posix User Threads is in your estate, then compare installed versions with the affected ranges. Affected packages or ranges on record: Hewlett Packard Enterprise HPE NonStop Posix User Threads. Check the linked vendor or CERT advisories for patch status. Prefer the vendor or distribution advisory linked in Sources before changing production systems. This is a catalog interpretation, not a runbook.
Security analyst
Signals on file: CVSS 6.6. It is not currently listed in the CISA Known Exploited catalog. Weakness classes: CWE-122. Sources contributing to this record: cve_org, nvd. Public exploit references, when present, are outbound links only and are not proof of active exploitation. This is a catalog interpretation of stored metadata.
Exploitation and remediation
Exploitation evidence
Not listed as known exploited in CISA KEV. Not in CISA KEV or VulnCheck KEV.
Patch and remediation
No required-action text is stored yet. Use the vendor or CERT links in Sources for patch availability.
Safe detection guidance
Compare installed versions with the affected ranges below and verify the advisory from the original publisher. This site stores metadata and outbound links only; it does not ship exploit code or proof-of-concept payloads.
Code
The project this record applies to. Exploit listings stay in References.
No public source repository is identified for this product.
Timeline
Detection, updates, and resolution for this record.
Oct 15, 2026 · NIST NVD
Detected
A heap buffer overflow in HPE NonStop Posix User Threads may allow arbitrary code execution.
Oct 15, 2026 · NIST NVD
Updated
A heap buffer overflow in HPE NonStop Posix User Threads may allow arbitrary code execution.
Oct 15, 2026 · NIST NVD
Updated
A heap buffer overflow in HPE NonStop Posix User Threads may allow arbitrary code execution.
Affected
- vendor Hewlett Packard Enterprise HPE NonStop Posix User Threadsversion unspecified
Sources
- CVE.orgVulnerability recordCVE-2026-79831
A heap buffer overflow in HPE NonStop Posix User Threads may allow arbitrary code execution.
cve.org - NIST NVDVulnerability recordCVE-2026-79831
A heap buffer overflow in HPE NonStop Posix User Threads may allow arbitrary code execution.
nvd.nist.gov