CVE-2026-76656 HPE NonStop TCP/IP UTILITIES - Denial of Service vulnerability
Unauthenticated remote attackers can cause a denial of service in HPE NonStop TCP/IP UTILITIES when traceroute is executed under specific conditions.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-76656?
CVE-2026-76656 is a medium-severity denial of service vulnerability in Hewlett Packard Enterprise HPE NonStop TCP/IP UTILITIES, published on 15 Oct 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
A vulnerability in HPE NonStop TCP/IP UTILITIES could allow an unauthenticated remote attacker to cause a denial of service when traceroute is executed under certain conditions.
Weakness: CWE-306
Which versions are affected by CVE-2026-76656?
How do I fix CVE-2026-76656?
No fix has been published for CVE-2026-76656 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2026-76656 being exploited?
There is no known exploitation of CVE-2026-76656 in the wild and no public exploit code.
Sources
Also known as GHSA-6vqx-p79g-6f7f.