CVE-2026-73701 Unauthenticated Remote Code Execution in HPE Networking Fabric Composer

Critical 9.0 Published 1 Sep 2026 Updated 2 Sep 2026

Unauthenticated attackers can execute arbitrary code as a privileged user on HPE Fabric Composer hosts if specific preconditions are met.

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-2026-73701?

CVE-2026-73701 is a critical code injection vulnerability in Arubanetworks Fabric Composer, published on 1 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

An unauthenticated remote code execution vulnerability exists in the underlying operating system of HPE Networking Fabric Composer and could be exploited if certain preconditions outside of the attacker's control are met. Successful exploitation of this vulnerability could allow an unauthenticated remote attacker to execute arbitrary code as a privileged user on the underlying operating system, leading to complete compromise of the HPE Networking Fabric Composer host.

Weakness: CWE-94

Which versions are affected by CVE-2026-73701?

It affects 1 product.

Products include Arubanetworks Fabric Composer.

How do I fix CVE-2026-73701?

No fix has been published for CVE-2026-73701 yet. Limit exposure of the affected software until one is available.

Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.

Is CVE-2026-73701 being exploited?

There is no known exploitation of CVE-2026-73701 in the wild and no public exploit code.

All Arubanetworks Fabric Composer vulnerabilities

Sources

Also known as GHSA-5g7r-7f5g-jgxw.