Quick answers
- Is CVE-2026-73705 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-73705 being exploited in the wild.
- How severe is CVE-2026-73705?
- 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-2026-73705?
- 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-2026-73705 attacked?
- It is attacked over the network, in a network appliance.
- Am I affected by CVE-2026-73705?
- 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 arbitrary file write flaw in the API of HPE Networking Fabric Composer that allows privilege escalation. An authenticated low-privilege operator user can write arbitrary files through the API, enabling them to escalate to higher privileges and execute arbitrary commands on the underlying operating system. The attack requires valid authentication credentials but no elevated initial privileges. Successful exploitation results in complete system compromise with OS-level command execution.
Affected products
- HPE Networking Fabric Composer
Timeline
- 2026-09-01: disclosed