CVE-2026-79830 HPE NonStop Kernel Level Thread Model Lib - Stack buffer overflow vulnerability

Medium 6.6 Published Updated

A stack buffer overflow in the HPE NonStop Kernel Level Thread Model Lib allows attackers to 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-2026-79830?

CVE-2026-79830 is a medium-severity memory corruption vulnerability in Hewlett Packard Enterprise HPE NonStop Kernel Level Thread Model Lib, 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 vulnerability in HPE NonStop Kernel Level Thread Model Lib can cause stack buffer overflow which can allow arbitrary code execution.

Weakness: CWE-121

Which versions are affected by CVE-2026-79830?

How do I fix CVE-2026-79830?

No fix has been published for CVE-2026-79830 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-2026-79830 being exploited?

There is no known exploitation of CVE-2026-79830 in the wild and no public exploit code.

Sources

Also known as GHSA-cjm7-r6hw-2rf2.

Is CVE-2026-79830 in your software?

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