Quick answers
- Is CVE-2026-73733 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-73733 being exploited in the wild.
- How severe is CVE-2026-73733?
- Medium severity, with a CVSS score of 5.4, published 1 September 2026.
- Which products and versions are affected?
- HPE Networking Fabric Composer.
- Is there a fix for CVE-2026-73733?
- 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-2026-73733 attacked?
- It is attacked over the network, in a network appliance.
- Am I affected by CVE-2026-73733?
- 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
The vulnerability is an authentication bypass in the API of HPE Networking Fabric Composer that allows an authenticated, low-privilege operator user to circumvent existing authentication controls. The attack requires prior authentication (the attacker must already have valid credentials), and successful exploitation enables an attacker to maintain access to the affected system after legitimate access should have been revoked. The specific mechanism of the bypass is not detailed in the available reference material, but the impact is limited to retaining access rather than escalating privileges.
Affected products
- HPE Networking Fabric Composer
Timeline
- 2026-09-01: disclosed