{"id":"CVE-2026-76730","title":"An authentication bypass vulnerability exists in the PAPI protocol of HPE Networking Instant ON APs that could allow an unauthenticated adjacent attacker to circumvent existing authentication controls","summary":"An authentication bypass vulnerability exists in the PAPI protocol of HPE Networking Instant ON APs that could allow an unauthenticated adjacent attacker to circumvent existing authentication controls. Successful exploitation could allow…","severity":"medium","cvss":6.5,"cvssVector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","vendor":"Hewlett Packard Enterprise (HPE)","product":"Instant ON","affected":["instant_on >= 0.0.0.0 <= 3.4.1.0"],"published":"2026-09-29","updated":"2026-09-29","sourceUpdated":"2026-09-29T21:39:02.570","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-76730","references":[{"url":"https://support.hpe.com/hpesc/public/docDisplay?docId=hpesbnw05150en_us&docLocale=en_US","label":"security-alert@hpe.com"}],"tags":["nvd","cve.org"],"ingestedAt":"2026-09-29T19:44:04.154Z","slug":"CVE-2026-76730","body":"## Overview\n\nAn authentication bypass vulnerability exists in the PAPI protocol of HPE Networking Instant ON APs that could allow an unauthenticated adjacent attacker to circumvent existing authentication controls. Successful exploitation could allow an attacker to circumvent certain existing authentication mechanisms and send unauthorized network traffic to the target device.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":36,"depthScoreParts":{"impact":35.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}