CVE-2026-76663 - Vulnerability Details - OpenCVE

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

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00267.

Exploitation none

Automatable yes

Technical Impact partial

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

Hewlett Packard Enterprise

HPE NonStop TELSERV

affected

Version	Status	Constraints
`T9553L01^BAJ and earlier`	affected	—

No data.

No data.

OpenCVE Enrichment is a feature of OpenCVE that uses AI to automatically link vendors and products to CVEs. Learn more on GitHub.

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Project Subscriptions

No data.

Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References

Link	Providers
https://support.hpe.com/hpesc/public/docDisplay?docId=hpesbns05148en_us&docLocale=en_US

History

Thu, 15 Oct 2026 16:30:00 +0000

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Thu, 15 Oct 2026 02:30:00 +0000

Type	Values Removed	Values Added
Description		A stack-based buffer overflow vulnerability in HPE NonStop TELSERV can cause memory corruption that may result in DoS.
Title		HPE NonStop TELSERV - Memory corruption vulnerability
Weaknesses		CWE-121
References		https://support.hpe.com/hpesc/public/docDisplay?docId=hpesbns05148en_us&docLocale=en_US
Metrics		cvssV3_1 `{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}`

Projects

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MITRE

Status: PUBLISHED

Assigner: hpe

Published: 2026-10-15T02:16:17.282Z

Updated: 2026-10-15T15:13:11.086Z

Reserved: 2026-08-19T16:10:37.083Z

Link: CVE-2026-76663

Vulnrichment

Updated: 2026-10-15T15:13:01.878Z

NVD

Status : Awaiting Analysis

Published: 2026-10-15T03:17:11.233

Modified: 2026-10-15T16:23:06.250

Link: CVE-2026-76663

Redhat

No data.

OpenCVE Enrichment

Updated: 2026-10-15T13:00:18Z

Weaknesses

CWE-121

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