CVE-2026-76726
Authentication Bypass Leading to Unauthorized Network Access in HPE Networking Instant ON API Endpoint
CVSS Score
8.1
EPSS Score
0.0%
EPSS Percentile
0th
An authentication bypass vulnerability in the API endpoint of HPE Networking Instant ON could allow an unauthenticated remote attacker to bypass network access controls if certain preconditions outside of the attacker's control are met. Successful exploitation could allow an attacker to obtain unauthorized access to restricted networks.
| 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:H/PR:N/UI:N/S:U/C:H/I:H/A:H Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Affected Versions
Hewlett Packard Enterprise (HPE) / Instant ON
0.0.0.0 ≤ 3.4.1.0
References
Credits
🔍 Internal security research (HPE Networking).