CVE-2026-27846 PUBLISHED

Missing authentication in Linksys MR9600, Linksys MX4200

Assigner: ENISA
Reserved: 24.02.2026 Published: 25.02.2026 Updated: 25.02.2026

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.

Product Status

Vendor Linksys
Product MR9600
Versions Default: affected
  • Version 1.0.4.205530 is affected
Vendor Linksys
Product MX4200
Versions Default: unaffected
  • Version 1.0.13.210200 is affected

References

Problem Types

  • CWE-306 Missing Authentication for Critical Function CWE

Impacts

  • CAPEC-37 Retrieve Embedded Sensitive Data