CVE-2026-76731: Vulnerability in Hewlett Packard Enterprise (HPE) Instant ON
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.
AI Analysis
Technical Summary
This vulnerability in HPE Instant On's captive portal permits an unauthenticated remote attacker to circumvent authentication mechanisms. Exploitation could result in limited unauthorized access to data and limited capability to modify certain aspects of the affected component. The issue affects all versions from 0.0.0.0 through 3.4.1.0 inclusive. There is no information provided about available patches or vendor advisories addressing this vulnerability.
Potential Impact
Successful exploitation allows an unauthenticated attacker to bypass authentication controls, leading to limited data disclosure and limited unauthorized changes within the affected component. There is no indication of impact on availability or elevated privileges beyond the limited scope described.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no patch or official fix information is provided, users should monitor HPE advisories for updates. Until a fix is available, consider restricting access to the captive portal or implementing compensating controls to limit exposure.
CVE-2026-76731: Vulnerability in Hewlett Packard Enterprise (HPE) Instant ON
Description
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.
CVSS v3.1
Score 6.5medium
Affected software
Hewlett Packard Enterprise (HPE)
Instant ON
pkg:github/hewlettpackardenterprise/InstantONRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability in HPE Instant On's captive portal permits an unauthenticated remote attacker to circumvent authentication mechanisms. Exploitation could result in limited unauthorized access to data and limited capability to modify certain aspects of the affected component. The issue affects all versions from 0.0.0.0 through 3.4.1.0 inclusive. There is no information provided about available patches or vendor advisories addressing this vulnerability.
Potential Impact
Successful exploitation allows an unauthenticated attacker to bypass authentication controls, leading to limited data disclosure and limited unauthorized changes within the affected component. There is no indication of impact on availability or elevated privileges beyond the limited scope described.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no patch or official fix information is provided, users should monitor HPE advisories for updates. Until a fix is available, consider restricting access to the captive portal or implementing compensating controls to limit exposure.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- hpe
- Date Reserved
- 2026-08-19T16:13:18.140Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6abc13a2680226ef682f7f1a
Added to database: 09/29/2026, 19:38:10 UTC
Last enriched: 09/29/2026, 19:52:12 UTC
Last updated: 09/29/2026, 20:53:52 UTC
Views: 3
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