CVE-2026-76663 HPE NonStop TELSERV - Memory corruption vulnerability
A stack-based buffer overflow in HPE NonStop TELSERV allows attackers to cause memory corruption and denial of service.
- 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-2026-76663?
CVE-2026-76663 is a high-severity memory corruption vulnerability in Hewlett Packard Enterprise HPE NonStop TELSERV, published on 15 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A stack-based buffer overflow vulnerability in HPE NonStop TELSERV can cause memory corruption that may result in DoS.
Weakness: CWE-121
Which versions are affected by CVE-2026-76663?
How do I fix CVE-2026-76663?
No fix has been published for CVE-2026-76663 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-2026-76663 being exploited?
There is no known exploitation of CVE-2026-76663 in the wild and no public exploit code.
Sources
Also known as GHSA-9rwj-hh6p-x6gp.