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LOW · 3.8

CVE-2026-20071

A vulnerability in the SSID bring-your-own-device (BYOD) onboarding workflow of Cisco ISE could allow an unauthenticated, adjacent attacker to hijack the onboarding session of another user and ac...

Vulnerability Description

A vulnerability in the SSID bring-your-own-device (BYOD) onboarding workflow of Cisco ISE could allow an unauthenticated, adjacent attacker to hijack the onboarding session of another user and access protected 802.1X networks.   This vulnerability is due to insufficient authentication checks that are performed while a user is being onboarded. An attacker could exploit this vulnerability by spoofing the legitimate user and triggering a redirection to the guest web portal. A successful exploit could allow the attacker to take over the user session and gain access to the protected 802.1X network.

CVSS Score

3.8

LOW

CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:N
Attack Vector
ADJACENT_NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality
NONE
Integrity
LOW
Availability
NONE

Related Weaknesses (CWE)

CWE-290

References

FAQ

What is CVE-2026-20071?

CVE-2026-20071 is a vulnerability with a CVSS score of 3.8 (LOW). A vulnerability in the SSID bring-your-own-device (BYOD) onboarding workflow of Cisco ISE could allow an unauthenticated, adjacent attacker to hijack the onboarding session of another user and ac...

How severe is CVE-2026-20071?

CVE-2026-20071 has been rated LOW with a CVSS base score of 3.8/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-20071?

Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.