How severe is CVE-2026-73798?

CVE-2026-73798 has a CVSS 3.x base score of 8.2, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability high.

Is CVE-2026-73798 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (24th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-73798?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2026-73798 published?

CVE-2026-73798 was published on 2026-10-14.

CVE-2026-73798

CVE-2026-73798 is a high-severity vulnerability with a CVSS 3.x base score of 8.2. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-115.

Key facts

Severity: High (CVSS 3.x base score 8.2)
EPSS exploit prediction: 0% (24th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-115
Published: 2026-10-14
Last modified: 2026-10-14

Description

A security vulnerability in HPE NonStop DNS 9.2.3 Non Secure Version could cause a Denial of Service.

Frequently asked questions

What is CVE-2026-73798?: A security vulnerability in HPE NonStop DNS 9.2.3 Non Secure Version could cause a Denial of Service.
How severe is CVE-2026-73798?: CVE-2026-73798 has a CVSS 3.x base score of 8.2, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability high.
Is CVE-2026-73798 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (24th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-73798?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2026-73798 published?: CVE-2026-73798 was published on 2026-10-14.

References

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

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