CVE-2026-76689: Authenticated Buffer Overflow Vulnerability leads to Remote Code Execution or Denial-of-Service in HPE Networking EdgeConnect SD-WAN Gateways

Severity: high (CVSS 7.2 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.9% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-09-15 · updated 2026-09-28
Weakness: CWE-121

Description

A vulnerability exists in the configuration processing logic of the affected component where malformed input is improperly processed. An authenticated remote attacker with administrative privileges could exploit this vulnerability by providing specially crafted configuration data. Successful exploitation could result in a stack-based buffer overflow, potentially leading to remote code execution with root privileges or a denial of service due to a system crash.

Affected products

Hewlett Packard Enterprise (HPE) EdgeConnect SD-WAN Orchestrator: from 9.4.0 before 9.4.11; from 9.5.0 before 9.5.9; from 9.6.0 before 9.6.4; 9.7.0 — fixed in 9.4.11, 9.5.9, 9.6.4
HPE Edgeconnect Operating System: from 9.4.0.0 before 9.4.9.0; from 9.5.0.0 before 9.5.9.0; from 9.6.0.0 before 9.6.4.0; 9.7.0.0 — fixed in 9.4.9.0, 9.5.9.0, 9.6.4.0

How to fix

Upgrade to a fixed version: Hewlett Packard Enterprise (HPE) EdgeConnect SD-WAN Orchestrator 9.4.11, 9.5.9, 9.6.4; HPE Edgeconnect Operating System 9.4.9.0, 9.5.9.0, 9.6.4.0. Check the vendor advisory for mitigations.

References

https://support.hpe.com/hpesc/public/docDisplay?docId=hpesbnw05135en_us&docLocale=en_US

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