CVE-2026-73720 Authenticated Insecure File Handling allows Remote Code Execution in HPE Networking Fabric Composer API
Authenticated attackers can execute arbitrary commands as a privileged user via insecure file operations in the HPE Networking Fabric Composer API.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-73720?
CVE-2026-73720 is a high-severity command injection vulnerability in Arubanetworks Fabric Composer, published on 1 Sep 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
Insecure file operations in the API of HPE Networking Fabric Composer could allow an authenticated remote attacker to achieve remote code execution. Successful exploitation could allow an attacker to execute arbitrary commands as a privileged user on the underlying operating system.
Which versions are affected by CVE-2026-73720?
It affects 1 product.
Products include Arubanetworks Fabric Composer.
How do I fix CVE-2026-73720?
No fix has been published for CVE-2026-73720 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-2026-73720 being exploited?
There is no known exploitation of CVE-2026-73720 in the wild and no public exploit code.
Other vulnerabilities in Arubanetworks Fabric Composer
- CVE-2026-76657 Authentication Bypass in HPE Networking Fabric Composer API allows Administrative Access
- CVE-2026-76658 Unauthenticated Remote Code Execution in HPE Networking Fabric Composer SSH Daemon
- CVE-2026-19766 Authentication Bypass leads to Administrative control of adjacent network hosts in HPE Networking Fabric Composer
- CVE-2026-73700 Cross-site scripting in Fabric Composer
- CVE-2026-73701 Unauthenticated Remote Code Execution in HPE Networking Fabric Composer
Sources
Also known as GHSA-3375-xg46-rv63.