---
id: CVE-2026-102168
title: >-
  On affected Arista Wi-Fi access points with Captive Portal enabled, an
  unauthenticated wireless client connected to a Captive-Portal-enabled SSID can
  crash the portal service with a crafted HTTP request
summary: >-
  On affected Arista Wi-Fi access points with Captive Portal enabled, an
  unauthenticated wireless client connected to a Captive-Portal-enabled SSID can
  crash the portal service with a crafted HTTP request. This results in a
  temporary denia…
severity: medium
cvss: 6.5
cvssVector: 'CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'
cwe:
  - CWE-191
vendor: Arista Networks
product: Wi-Fi Access Points
affected:
  - wi-fi_access_points >= 22.0.0 <= 22.0.1F-32
  - wi-fi_access_points >= 21.3.0 <= 21.3.0M-13
  - wi-fi_access_points >= 1.0.0 < 21.3.0
published: '2026-10-06'
updated: '2026-10-06'
sourceUpdated: '2026-10-06T21:17:03.843'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-102168'
references:
  - url: >-
      https://www.arista.com/en/support/advisories-notices/security-advisory/24810-security-advisory-0194
    label: psirt@arista.com
tags:
  - nvd
  - cve.org
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-10-06T20:06:24.609870Z'
ingestedAt: '2026-10-06T20:16:42.483Z'
---

## Overview

On affected Arista Wi-Fi access points with Captive Portal enabled, an unauthenticated wireless client connected to a Captive-Portal-enabled SSID can crash the portal service with a crafted HTTP request. This results in a temporary denial of service until the service automatically restarts. Remote code execution is not possible.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.