# CVE-2026-76703: HPE Networking EdgeConnect buffer overflow in web management interface

Source: https://junglewise.ai/threats/cve-2026-76703-hpe-networking-edgeconnect-buffer-overflow-in-web-management  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-09-15. Updated: 2026-09-26  
License: CC BY 4.0 with a link back

CVE-2026-76703 · Severity: medium · CVSS 5.5 · Published 2026-09-15

HPE Networking EdgeConnect SD-WAN Gateways include a web-based management interface used to configure and monitor network traffic control. A buffer overflow vulnerability in this interface allows authenticated administrators to crash the system, disrupting network operations and potentially leaving the device in an unstable state that requires manual recovery.

## Quick answers

**Is CVE-2026-76703 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-76703 being exploited in the wild.

**How severe is CVE-2026-76703?** Medium severity, with a CVSS score of 5.5, published 15 September 2026.

**Which products and versions are affected?** HPE Networking EdgeConnect SD-WAN Gateways.

**Is there a fix for CVE-2026-76703?** 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-2026-76703 attacked?** It is attacked over the network, in a network appliance.

**Am I affected by CVE-2026-76703?** Check whether anything you run is named in the advisory. 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 web-based management interface of HPE Networking EdgeConnect SD-WAN Gateways. The vulnerability requires authentication with administrative privileges and network access to the management interface. Successful exploitation can cause a denial of service by crashing the management process or the entire device. The vulnerability is a classic memory corruption issue that could potentially be leveraged for further exploitation, though current evidence indicates it primarily impacts availability. Patches are available through HPE support.

## Affected products

- HPE Networking EdgeConnect SD-WAN Gateways

## Timeline

- 2026-09-15: disclosed

## References

- [https://support.hpe.com/hpesc/public/docDisplay?docId=hpesbnw05135en_us&docLocale=en_US](https://support.hpe.com/hpesc/public/docDisplay?docId=hpesbnw05135en_us&docLocale=en_US)