CVE-2026-121933

critical

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.

References

https://www.linksys.com/

https://vuldb.com/vuln/431045/cti

https://vuldb.com/vuln/431045

https://vuldb.com/submit/1024276

https://vuldb.com/cve/CVE-2026-121933

https://github.com/Zimo-666/E5350-cves/tree/main/02-empty-admin-password-auth-bypass

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-117035

Details

Source: Mitre, NVD

Published: 2026-11-04

Updated: 2026-11-04

Risk Information

CVSS v2

Base Score: 10

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

Severity: Critical

CVSS v3

Base Score: 10

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Severity: Critical

CVSS v4

Base Score: 10

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H

Severity: Critical