CVE-2026-79826 HPE NonStop OCAX - Heap buffer overflow vulnerability
A heap buffer overflow in HPE NonStop OCAX allows attackers to corrupt memory and potentially execute arbitrary code.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-79826?
CVE-2026-79826 is a high-severity memory corruption vulnerability in Hewlett Packard Enterprise HPE NonStop OCAX, published on 15 Oct 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
A heap buffer overflow in HPE NonStop OCAX could corrupt address space and may potentially redirect execution flow.
Weakness: CWE-122
Which versions are affected by CVE-2026-79826?
How do I fix CVE-2026-79826?
No fix has been published for CVE-2026-79826 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-2026-79826 being exploited?
There is no known exploitation of CVE-2026-79826 in the wild and no public exploit code.
Sources
Also known as GHSA-wmc3-72j6-g5fp.