CVE-2026-76734 Unauthenticated Memory Corruption Vulnerability leads to Denial-of-Service in HPE Networking Instant On
Unauthenticated remote attackers can cause denial of service and access limited information via memory corruption in HPE Instant On devices.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-76734?
CVE-2026-76734 is a medium-severity memory corruption vulnerability in Hewlett Packard Enterprise (HPE) Instant ON, published on 29 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A memory corruption vulnerability in the affected interface of HPE Networking Instant On could allow an unauthenticated remote attacker to conduct a denial of service attack. Successful exploitation could allow an attacker to interrupt the normal operation of the affected service and to access some limited information within the affected component.
Weakness: CWE-119
Which versions are affected by CVE-2026-76734?
How do I fix CVE-2026-76734?
No fix has been published for CVE-2026-76734 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2026-76734 being exploited?
There is no known exploitation of CVE-2026-76734 in the wild and no public exploit code.
Sources
Also known as GHSA-wh55-67qx-9pcr.