Quick answers
- Is CVE-2026-73746 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-73746 being exploited in the wild.
- How severe is CVE-2026-73746?
- Low severity, with a CVSS score of 3.1, published 1 September 2026.
- Which products and versions are affected?
- HPE Networking Fabric Composer.
- Is there a fix for CVE-2026-73746?
- 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-2026-73746 attacked?
- It is attacked over the network.
- Am I affected by CVE-2026-73746?
- 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 denial-of-service vulnerability exists in the API of HPE Networking Fabric Composer that can be triggered by authenticated low-privilege operator users. The vulnerability allows an attacker with valid credentials to send specially crafted API requests that cause the service to become unavailable. Exploitation requires authentication, limiting the attack surface to users with legitimate access to the system. A patch or mitigation guidance is expected to be available from HPE.
Affected products
- HPE Networking Fabric Composer
Timeline
- 2026-09-01: disclosed