---
id: CVE-2026-121933
title: Linksys E5350 Setup Wizard apply.cgi save_settings missing authentication
summary: >-
  A flaw has been found in Linksys E5350 1.0.00.037. This impacts the function
  save_settings of the file /wizard/apply.cgi of the component Setup Wizard.
  Executing a manipulation of the argument wizard_router_pwd can lead to missing
  authen…
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: E5350
affected:
  - E5350 1.0.00.037
published: '2026-11-04'
updated: '2026-11-04'
sourceUpdated: '2026-11-04T19:15:17.845Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-121933'
references:
  - url: 'https://vuldb.com/vuln/431045'
    label: >-
      VDB-431045 | Linksys E5350 Setup Wizard apply.cgi save_settings missing
      authentication
  - url: 'https://vuldb.com/vuln/431045/cti'
    label: 'VDB-431045 | CTI Indicators (IOB, IOC, IOA)'
  - url: 'https://vuldb.com/cve/CVE-2026-121933'
    label: CVE-2026-121933 | CVE Analysis and Report
  - url: 'https://vuldb.com/submit/1024276'
    label: >-
      Submit #1024276 | Linksys E5350 1.0.00.037 Improper Authentication
      (CWE-258 / CWE-306)
  - url: >-
      https://github.com/Zimo-666/E5350-cves/tree/main/02-empty-admin-password-auth-bypass
  - url: 'https://www.linksys.com/'
tags:
  - cve.org
ingestedAt: '2026-11-05T21:36:00.519Z'
epss: 0.00977
epssPercentile: 0.62359
---

## Overview

A flaw has been found in Linksys E5350 1.0.00.037. This impacts the function save_settings of the file /wizard/apply.cgi of the component Setup Wizard. Executing a manipulation of the argument wizard_router_pwd can lead to missing authentication. The attack may be launched remotely. The exploit has been published and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

## Affected

- `E5350 1.0.00.037`

## Remediation

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