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VulnerabilitiesOct 23, 2026

HPE patches eight max severity RCE and auth bypass AOS flaws

HPE patches 72 ArubaOS vulnerabilities, including eight critical RCE and auth bypass flaws.

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Summary

Hewlett Packard Enterprise (HPE) has released security updates to address 72 vulnerabilities in its Aruba Operating System (ArubaOS). Eight of these flaws are rated maximum severity, allowing for authentication bypass and remote code execution through low-complexity attacks. HPE urges customers to patch these issues promptly and recommends network segmentation and firewall policies for mitigation.

The lesson from this incident

Full lesson

Eight maximum-severity vulnerabilities in HPE's ArubaOS expose enterprise network infrastructure to unauthenticated remote code execution and authentication bypass — both achievable through low-complexity attacks, meaning even less-skilled threat actors can exploit them. These flaws affect the operating system underpinning Aruba networking devices, which are widely deployed in enterprise and critical environments, dramatically amplifying the blast radius. The fact that HPE explicitly recommends network segmentation and firewall policies as interim mitigations underscores that patching alone cannot always be the first line of defense. Delayed patch application in environments running unpatched Aruba devices leaves organizations exposed to full network compromise with minimal attacker effort.

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Indicators of Compromise

  • cve — CVE-2026-79844
  • cve — CVE-2026-79845
  • cve — CVE-2026-79846
  • cve — CVE-2026-79847
  • cve — CVE-2026-79848
  • cve — CVE-2026-79849
  • cve — CVE-2026-79850
  • cve — CVE-2026-79851

Entities

HPE (vendor)ArubaOS (product)Aruba Networking (product)enterprise wireless infrastructure (technology)HPE OneView (product)ArubaOS-CX (product)