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UK Cyber Defence
VulnerabilityAwaiting Analysis

CVE-2026-73798

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

HIGH 8.2EPSS 0.33%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (0.33%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

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

CVSS 3.1
8.2 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H
EPSS
0.33% probability · 25th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Weakness
CWE-115
Source
security-alert@hpe.com
EPSS trend
0%3%5%15 October 2026: 0.33%26 October 2026: 0.33%15 October 202626 October 2026

EPSS moved from 0.3% on 15 October 2026 to 0.3% on 26 October 2026.

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.