CVE-2026-20071

Published: Set 16, 2026 Last Modified: Set 18, 2026
ExploitDB:
Other exploit source:
Google Dorks:
LOW 3,8
Source: [email protected]
Attack Vector: adjacent_network
Attack Complexity: low
Privileges Required: none
User Interaction: required
Scope: changed
Confidentiality: none
Integrity: low
Availability: none

Description

AI Translation Available

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.

290

Authentication Bypass by Spoofing

Incomplete
Abstraction: Base Structure: Simple
Common Consequences
Security Scopes Affected:
Access Control
Potential Impacts:
Bypass Protection Mechanism Gain Privileges Or Assume Identity
Applicable Platforms
All platforms may be affected
View CWE Details
https://sec.cloudapps.cisco.com/security/center/content/Cis…
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/c…