Authenticated Denial-of-Service Vulnerability in HPE Networking Instant On API Endpoint

published 2026-09-29 40 d ago modified 2026-09-30 39 d ago also EUVD-2026-89352

cvss: 4.9; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.3%; EPSS 0.3% chance of exploitation in 30 days, percentile 24%
public exploits: 0; none known

A denial-of-service vulnerability exists in the API endpoint of HPE Networking Instant On that could allow an authenticated attacker with administrative privileges to cause a denial of service. Successful exploitation could allow an attacker to interrupt the normal operation of the affected service, which resumes without manual intervention.

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: partial
Assessed: 39 d ago (2026-09-30)

Exploit prediction

0.31% chance of exploitation in the next 30 days, higher than 24% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	4.9	CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

Affected products

Hewlett Packard Enterprise (HPE) Instant ON

Classification

Weakness

CWE-400 Uncontrolled Resource Consumption

References

support.hpe.com /hpesc/public/docDisplay?docId=hpesbnw05150en_us&docLocale=en_US

Sources

CVE List CVE-2026-76733
NVD CVE-2026-76733

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Summary