CVE-2026-121933 Details
Description
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.
An authentication bypass vulnerability has been identified in the Linksys E5350 router running firmware version 1.0.00.037. The issue arises in the setup wizard component, specifically within the 'save_settings' function of the 'apply.cgi' file. The vulnerability allows for the acceptance of an empty router administrator password, which is then saved without any validation. This flaw can be exploited remotely, leading to unauthorized access to the router's management interface.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Nov 4, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/Zimo-666/E5350-cves/tree/main/02-empty-admin-password-auth-bypass | [email protected] | ExploitTechnical Analysis |
| https://vuldb.com/cve/CVE-2026-121933 | [email protected] | AdvisoryPermission Required |
| https://vuldb.com/submit/1024276 | [email protected] | Issue TrackingPermission Required |
| https://vuldb.com/vuln/431045 | [email protected] | AdvisoryPermission Required |
| https://vuldb.com/vuln/431045/cti | [email protected] | Content Wall |
| https://www.linksys.com/ | [email protected] | Vendor |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-287 | Improper Authentication | [email protected] |
| CWE-306 | Missing Authentication for Critical Function | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| Linksys E5350 | 1.0.00.037 |
CPE
Remediation
| |
Change History
1 change record found show changes
| Date | Action | Recorded By |
|---|---|---|
| Nov 4, 2026 | New CVE Received | [email protected] |