CVE-2026-79875: Critical Auth Bypass in HPE ArubaOS AOS-8 PAPI Protocol
A critical authentication bypass, tracked as CVE-2026-79875, has been identified in the PAPI protocol of HPE Networking ArubaOS AOS-8. The flaw can be exploited by an unauthenticated attacker on an adjacent network, potentially granting administrative access, enabling configuration changes, and exposing or altering sensitive data. Affected versions span 8.13.0.0 to 8.13.3.0 and 8.10.0.0 to 8.10.0.23, with fixes available in 8.13.3.1 and 8.10.0.24. The CVE record gives it a CVSS 3.1 score of 9.3 and classifies it as improper authentication (CWE-287). Asset owners are advised to inventory device builds, restrict reachability of the management interface, apply fixed releases or document compensating controls, and review the wider HPESBNW05162 advisory and audit logs for unauthorized administrative activity.
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