Quick answers
- Is CVE-2026-73734 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-73734 being exploited in the wild.
- How severe is CVE-2026-73734?
- 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-2026-73734?
- 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-2026-73734 attacked?
- It is attacked over the network, in a web application.
- Am I affected by CVE-2026-73734?
- 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 open redirect flaw in the web-based management interface of HPE Networking Fabric Composer. An unauthenticated remote attacker can craft a URL with an arbitrary redirect target, causing users who access the legitimate interface to be redirected to an attacker-controlled website. The attack requires user interaction (clicking a malicious link) but no authentication. This could be leveraged in phishing campaigns to harvest credentials or deliver malware while appearing to originate from a trusted network management tool.
Affected products
- HPE Networking Fabric Composer
Timeline
- 2026-09-01: disclosed