CVE-2026-76736

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Buffer Overflow in HPE Networking Instant On OS

Publication date: 2026-09-29

Last updated on: 2026-09-30

Assigner: Hewlett Packard Enterprise (HPE)

Description

A buffer overflow vulnerability exists in the underlying operating system of HPE Networking Instant On. Successful exploitation could allow a low-privilege authenticated local attacker to interrupt the normal operation of the affected service.

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published

2026-09-29

Last Modified

2026-09-30

Generated

2026-10-19

AI Q&A

2026-09-30

EPSS Evaluated

2026-10-18

NVD

CVE-2026-76736

EUVD

EUVD-2026-89355

Affected Vendors & Products

Vendor	Product	Version / Range
hpe	networking_instant_on	*

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-119	The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.

Attack-Flow Graph

Executive Summary

This is a buffer overflow vulnerability in HPE Networking Instant On's operating system. It allows a low-privilege authenticated local attacker to disrupt the normal operation of the affected service by exploiting this flaw.

Detection Guidance

The provided CVE data does not include specific detection methods or commands for identifying this buffer overflow vulnerability on a system. General approaches may involve monitoring for unusual service behavior or crashes, but no actionable details are available here.

Impact Analysis

The impact is limited but could cause service disruptions. Since exploitation requires local access and low privileges, the risk is moderate. It may lead to temporary unavailability of network services.

Compliance Impact

The provided CVE details a buffer overflow vulnerability in HPE Networking Instant On's operating system. This type of vulnerability could potentially lead to service disruption but does not directly indicate data exposure or unauthorized access. Compliance impact depends on specific system configurations and data handling practices, which are not detailed here.

Mitigation Strategies

Apply the latest security patches provided by HPE for HPE Networking Instant On. Ensure the operating system is updated to the fixed version. Restrict local access to trusted users only and monitor for unusual service interruptions.

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