CVE-2026-76733 Authenticated Denial-of-Service Vulnerability in HPE Networking Instant On API Endpoint
An authenticated administrator can cause a temporary denial of service in the HPE Networking Instant On API endpoint.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-76733?
CVE-2026-76733 is a medium-severity denial of service vulnerability in Hewlett Packard Enterprise (HPE) Instant ON, published on 29 Sep 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Official 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.
Weakness: CWE-400
Which versions are affected by CVE-2026-76733?
How do I fix CVE-2026-76733?
No fix has been published for CVE-2026-76733 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2026-76733 being exploited?
There is no known exploitation of CVE-2026-76733 in the wild and no public exploit code.
Sources
Also known as GHSA-6xgw-rfhr-8vwg.