Quick answers
- Is CVE-2026-73704 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-73704 being exploited in the wild.
- How severe is CVE-2026-73704?
- High severity, with a CVSS score of 8.8, published 1 September 2026.
- Which products and versions are affected?
- HPE Networking Fabric Composer.
- Is there a fix for CVE-2026-73704?
- No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
- How is CVE-2026-73704 attacked?
- It is attacked over the network, in a network appliance.
- Am I affected by CVE-2026-73704?
- Check whether you run Arubanetworks Fabric Composer or Hpe Networking Fabric Composer. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
A command sanitization bypass vulnerability exists in the API of HPE Networking Fabric Composer. The vulnerability allows authenticated users with low privilege operator roles to escalate their permissions to administrative level through improper input validation or filtering of API commands. The attack requires valid authentication credentials and network access to the API endpoint. Successful exploitation grants an attacker full administrative control of the affected system, enabling complete compromise of network management capabilities. A patch is expected from HPE to address the input validation flaw.
Affected products
- HPE Networking Fabric Composer
Timeline
- 2026-09-01: disclosed