CVE-2026-76723 Unauthenticated Adjacent Buffer Overflow Vulnerabilities lead to Remote Code Execution in HPE Networking Instant ON APS
Unauthenticated adjacent attackers can exploit buffer overflows in HPE Instant ON APS to execute arbitrary code on the underlying operating system.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-76723?
CVE-2026-76723 is a critical memory corruption vulnerability in Hewlett Packard Enterprise (HPE) Instant ON, published on 29 Sep 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Buffer overflow vulnerabilities exist in the affected interface of HPE Networking Instant ON APS that could allow an unauthenticated adjacent attacker to achieve remote code execution. Successful exploitation could allow an attacker to execute arbitrary commands on the underlying operating system.
Weakness: CWE-120
Which versions are affected by CVE-2026-76723?
How do I fix CVE-2026-76723?
No fix has been published for CVE-2026-76723 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-2026-76723 being exploited?
There is no known exploitation of CVE-2026-76723 in the wild and no public exploit code.
Sources
Also known as GHSA-ghw5-8j5x-rfpq.