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CVE-2026-76673 – Authentication Bypass / Full Compromise – HPE EdgeConnect SD-WAN Orchestrator ≤ 9.7

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Summary

CVE-2026-76673 is a critical authentication bypass vulnerability in the API of HPE EdgeConnect SD-WAN Orchestrator. An unauthenticated remote attacker can circumvent existing authentication controls on the Orchestrator API to obtain administrative privileges, resulting in complete compromise of the Orchestrator host. The vulnerability carries a CVSS v3.1 base score of 9.8 (Critical).

Technical details

  • Root cause: flaws in the authentication controls of the EdgeConnect SD-WAN Orchestrator API that allow the controls to be circumvented.
  • Trigger conditions: an unauthenticated remote actor sends requests to the exposed Orchestrator API; no prior credentials or user interaction are required.
  • Attack vector: network-based (AV:N), low attack complexity, no privileges or user interaction required.
  • Impact: successful exploitation grants administrative privileges, leading to complete compromise of confidentiality, integrity, and availability of the Orchestrator host.

Affected software

  • HPE EdgeConnect SD-WAN Orchestrator versions 9.7.0 and earlier
  • HPE EdgeConnect SD-WAN Orchestrator 9.6.0 through 9.6.3
  • HPE EdgeConnect SD-WAN Orchestrator 9.5.0 through 9.5.8
  • HPE EdgeConnect SD-WAN Orchestrator 9.4.0 through 9.4.10

Severity

  • CVSS v3.1 Base Score: 9.8 (Critical)
  • Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Mitigation and recommended actions

  • Immediate: Apply the HPE-issued fix referenced in advisory HPESBNW05135 and upgrade EdgeConnect SD-WAN Orchestrator to a version beyond the affected ranges listed above (i.e., a release newer than 9.7.0, and beyond the affected 9.4.x, 9.5.x, and 9.6.x branches). Consult the HPE advisory for the exact fixed release for your branch.
  • If a patch cannot be applied immediately: restrict network access to the Orchestrator API/management interface to trusted management networks only (e.g., via firewall rules, VPN, or network segmentation), and avoid exposing the Orchestrator administrative interface directly to the internet.
  • Monitor Orchestrator logs for unexpected administrative account creation or configuration changes as an indicator of exploitation attempts.

References

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