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CVE-2026-76709 – Unauthenticated Arbitrary File Write / RCE – HPE Networking Analytics and Location

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Summary

CVE-2026-76709 is a critical unauthenticated arbitrary file write vulnerability in the internal administrative component of HPE Networking Analytics and Location Engine (ALE). A remote, unauthenticated attacker can gain unauthorized write access to the underlying file system with elevated privileges, which HPE states can result in full system compromise. The flaw carries a CVSS v3.1 base score of 9.8 (Critical) and affects ALE version 5.0.0.0 and all prior releases.

Technical details

  • Root cause: A flaw in ALE’s internal administrative component fails to properly authenticate or authorize requests before allowing file system write operations.
  • Trigger conditions: No authentication or user interaction is required; the vulnerable component is reachable over the network without any prior access or credentials.
  • Attack vector: Network (AV:N) — an attacker only needs network reachability to the ALE management/administrative interface.
  • Impact: Successful exploitation grants an unauthenticated attacker write access to the file system with elevated privileges, which can be leveraged to plant malicious files, modify configuration or application data, and potentially achieve full compromise of confidentiality, integrity, and availability on the host.
  • This issue was disclosed alongside nine other vulnerabilities in the same HPE advisory (HPESBNW05137) affecting ALE, including a related hardcoded-credentials issue (CVE-2026-76708) and an authenticated RCE-as-root issue (CVE-2026-76714); HPE states these were found through internal security research and that no public exploitation is known as of the advisory’s release.

Affected software

  • HPE Networking Analytics and Location Engine (ALE) versions 0.0.0.0 through 5.0.0.0 (inclusive of all versions at or before 5.0.0.0, including installations that are past End of Maintenance/End of Support).

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: Upgrade HPE Networking Analytics and Location Engine to version 5.1.0.0 or later, available via the HPE Networking Support Portal. HPE’s advisory bundles the fix for this and nine related CVEs (CVE-2026-76708, -76710 through -76717) in the same release.
  • If patching is not immediately possible: Restrict access to the ALE CLI and web-based management interfaces by isolating them on a dedicated Layer 2 network segment/VLAN, enforce firewall policies limiting reachability to trusted administrative hosts only, and enable accounting/logging controls to monitor administrative activity for signs of abuse.
  • Prioritize patching for any ALE instance reachable from untrusted or broad internal networks, given the lack of authentication required for exploitation.

References

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