---
id: CVE-2026-127275
title: >-
  Linksys EA8100 JNAP API ui_server.lua SetUnsecuredWiFiWarning missing
  authentication
summary: >-
  A vulnerability was determined in Linksys EA8100 1.0.3.216940. This issue
  affects the function SetRemoteSetting/SetUnsecuredWiFiWarning of the file
  ui_server.lua of the component JNAP API. This manipulation of the argument
  isEnabled/enab…
severity: critical
cvss: 10
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:C'
cvssSource: cna
cwe:
  - CWE-306
  - CWE-287
vendor: Linksys
product: EA8100
affected:
  - EA8100 1.0.3.216940
published: '2026-11-12'
updated: '2026-11-12'
sourceUpdated: '2026-11-12T23:45:21.417Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-127275'
references:
  - url: 'https://vuldb.com/vuln/436430'
    label: >-
      VDB-436430 | Linksys EA8100 JNAP API ui_server.lua SetUnsecuredWiFiWarning
      missing authentication
  - url: 'https://vuldb.com/vuln/436430/cti'
    label: 'VDB-436430 | CTI Indicators (IOB, IOC, IOA)'
  - url: 'https://vuldb.com/cve/CVE-2026-127275'
    label: CVE-2026-127275 | CVE Analysis and Report
  - url: 'https://vuldb.com/submit/1040997'
    label: >-
      Submit #1040997 | Linksys EA8100 Router firmware 1.0.3.216940 Missing
      Authentication
  - url: >-
      https://github.com/geo-chen/oss/blob/main/Linksys.md#finding-3-unauthenticated-write-access-to-remote-management-pairing-state-and-unsecured-wifi-warning-flag
  - url: 'https://www.linksys.com/'
tags:
  - cve.org
ingestedAt: '2026-11-13T00:18:16.518Z'
---

## Overview

A vulnerability was determined in Linksys EA8100 1.0.3.216940. This issue affects the function SetRemoteSetting/SetUnsecuredWiFiWarning of the file ui_server.lua of the component JNAP API. This manipulation of the argument isEnabled/enabled causes missing authentication. It is possible to initiate the attack remotely. The exploit has been publicly disclosed and may be utilized. The vendor was contacted early about this disclosure but did not respond in any way.

## Affected

- `EA8100 1.0.3.216940`

## Remediation

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