CVE-2026-79840 HPE NonStop XABroker - Memory corruption vulnerability
A buffer overflow in HPE NonStop XABroker allows attackers to cause memory corruption and application crashes.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-79840?
CVE-2026-79840 is a high-severity memory corruption vulnerability in Hewlett Packard Enterprise HPE NonStop XABroker, published on 15 Oct 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
A buffer overflow vulnerability in HPE NonStop XABroker may cause memory corruption, resulting in application crash.
Weakness: CWE-121
Which versions are affected by CVE-2026-79840?
How do I fix CVE-2026-79840?
No fix has been published for CVE-2026-79840 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-2026-79840 being exploited?
There is no known exploitation of CVE-2026-79840 in the wild and no public exploit code.
Sources
Also known as GHSA-grc6-c3v3-rgpj.