Medium severity · published Sep 29, 2026
CVE-2026-76733
Authenticated Denial-of-Service Vulnerability in HPE Networking Instant On API Endpoint
4.9
CVSS
0.3%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
High
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 24% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
IO
Instant ON · Hewlett Packard Enterprise (HPE)
0.0.0.0 through 3.4.1.0 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-76733
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-76733
support.hpe.com
https://support.hpe.com/hpesc/public/docDisplay?docId=hpesbnw05150en_us&docLocale=en_US
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