CVE-2026-76683: HPE EdgeConnect SD-WAN Gateway buffer overflow in API endpoint

CVE-2026-76683 · Severity: high · CVSS 8.1 · Published 2026-09-15

HPE Networking EdgeConnect SD-WAN Gateways are network appliances used to manage and optimize branch office connectivity. A buffer overflow vulnerability in the API endpoint could allow unauthenticated attackers to execute arbitrary commands on the underlying system, potentially leading to complete compromise of the gateway and disruption of branch network operations.

Technologies: Hpe EdgeConnect SD-WAN Gateway. Vendors: Hpe.

Quick answers

Is CVE-2026-76683 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-76683 being exploited in the wild.
How severe is CVE-2026-76683?
High severity, with a CVSS score of 8.1, published 15 September 2026.
Which products and versions are affected?
HPE EdgeConnect SD-WAN Gateway.
Is there a fix for CVE-2026-76683?
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-2026-76683 attacked?
It is attacked over the network, in a network appliance.
Am I affected by CVE-2026-76683?
Check whether you run Hpe EdgeConnect SD-WAN Gateway. 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 buffer overflow vulnerability exists in the API endpoint of HPE Networking EdgeConnect SD-WAN Gateways that can be triggered by an unauthenticated remote attacker. The vulnerability allows execution of arbitrary commands on the underlying operating system, though successful exploitation requires certain preconditions outside of the attacker's direct control. The flaw is in the API request handling component and could lead to complete system compromise if exploited.

Affected products

  • HPE EdgeConnect SD-WAN Gateway

Timeline

  • 2026-09-15: disclosed

References

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