HPE Fabric Composer up to 7.3.3 Web-based Management Interface command injection

Summaryinfo

A vulnerability was found in HPE Fabric Composer up to 7.3.3. It has been rated as critical. Impacted is an unknown function of the component Web-based Management Interface. This manipulation causes command injection. This vulnerability is handled as CVE-2026-73717. The attack can be initiated remotely. There is not any exploit available.

Detailsinfo

A vulnerability has been found in HPE Fabric Composer up to 7.3.3 and classified as critical. Affected by this vulnerability is an unknown function of the component Web-based Management Interface. The manipulation with an unknown input leads to a command injection vulnerability. The CWE definition for the vulnerability is CWE-77. The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

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.

It is possible to read the advisory at support.hpe.com. This vulnerability is known as CVE-2026-73717 since 08/13/2026. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 09/01/2026). The attack technique deployed by this issue is T1202 according to MITRE ATT&CK.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Vendor

• HPE

Name

• Fabric Composer

Version

• 7.3.0
• 7.3.1
• 7.3.2
• 7.3.3

License

• commercial

Website

• Vendor: https://www.hpe.com/

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