---
title: "CVE-2026-73798: HPE NonStop DNS - Denial of Service"
description: "HPE NonStop DNS 9.2.3 Non Secure Version contains a denial of service vulnerability caused by unspecified issue, letting attackers cause service disruption, exploit requires no special conditions."
url: https://panop.io/threat-heartbeat/CVE-2026-73798/
---

# CVE-2026-73798 HPE NonStop DNS - Denial of Service

HPE NonStop DNS 9.2.3 Non Secure Version contains a denial of service vulnerability caused by unspecified issue, letting attackers cause service disruption, exploit requires no special conditions.

CVSS base score 8.2 /10

High

CISA KEV

Not listed

Public exploit

None known

Authentication

Not required

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-73798)

## Details

Type

Denial of Service

Impact

Denial Of Service

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H

Published

14 October 2026

Updated

15 October 2026

Weakness

[CWE-115](https://cwe.mitre.org/data/definitions/115.html)

## Vendor fix

Update to the latest secure version of HPE NonStop DNS.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-73798](https://nvd.nist.gov/vuln/detail/CVE-2026-73798)
- [https://support.hpe.com/hpesc/public/docDisplay?docId=hpesbns05148en\_us&docLocale=en\_US](https://support.hpe.com/hpesc/public/docDisplay?docId=hpesbns05148en_us&docLocale=en_US)

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## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

Panop answers these inside your environment, for this CVE and every other finding.

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