CVE-2026-73717 Unauthenticated Command Injection Vulnerability in HPE Networking Fabric Composer Web-Based Management Interface

High 7.5 Published 1 Sep 2026 Updated 2 Sep 2026

Unauthenticated attackers can execute arbitrary commands on HPE Fabric Composer hosts if specific preconditions are met, leading to system compromise.

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-2026-73717?

CVE-2026-73717 is a high-severity command injection vulnerability in Arubanetworks Fabric Composer, published on 1 Sep 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 command injection vulnerability exists in the web-based management interface of HPE Networking Fabric Composer that could allow an unauthenticated remote attacker to run arbitrary commands on the underlying host if certain preconditions outside of the attacker's control are met. Successful exploitation could allow an attacker to execute arbitrary commands on the underlying operating system leading to complete system compromise.

Weakness: CWE-78, CWE-77

Which versions are affected by CVE-2026-73717?

It affects 1 product.

Products include Arubanetworks Fabric Composer.

How do I fix CVE-2026-73717?

No fix has been published for CVE-2026-73717 yet. Limit exposure of the affected software until one is available.

Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.

Is CVE-2026-73717 being exploited?

There is no known exploitation of CVE-2026-73717 in the wild and no public exploit code.

All Arubanetworks Fabric Composer vulnerabilities

Sources

Also known as GHSA-9crm-frqf-mmf9.