CVE-2026-27846 — Missing authentication in Linksys MR9600, Linksys MX4200

CVE-2026-27846

Missing authentication in Linksys MR9600, Linksys MX4200 PUBLISHED

Description (CNA)

Due to missing authentication, a user with physical access to the device can misuse the mesh functionality for adding a new mesh device to the network to gain access to sensitive information, including the password for admin access to the web interface and the Wi-Fi passwords.This issue affects MR9600: 1.0.4.205530; MX4200: 1.0.13.210200.

Affected (CNA)

Vendor / product	Versions
Linksys / MR9600	affected 1.0.4.205530
Linksys / MX4200	affected 1.0.13.210200

CWE

CWE-306

References

https://www.syss.de/fileadmin/dokumente/Publikationen/Advisories/SYSS-2025-002.txt

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.