CVE-2026-76731
Authentication Bypass in the Captive Portal of HPE Networking Instant On
CVSS Score
6.5
EPSS Score
0.0%
EPSS Percentile
0th
An authentication bypass vulnerability in the captive portal of HPE Networking Instant On could allow an unauthenticated remote attacker to circumvent existing authentication controls. Successful exploitation could allow an attacker to gain limited access to some data and to make limited changes within the affected component.
| Vendor | hewlett packard enterprise (hpe) |
| Product | instant on |
| Published | Sep 29, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
None
Affected Versions
Hewlett Packard Enterprise (HPE) / Instant ON
0.0.0.0 ≤ 3.4.1.0
References
Credits
🔍 Internal security research (HPE Networking).