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

Published Feb 25, 2026
·
Updated

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 Software

2 affected components
LinkSys MR9600
LinkSys MX4200

Event History

Feb 25, 2026
CVE Published
via MITRE·03:03 PM
Data Sourced
via MITRE·03:03 PM
DescriptionWeakness
Data Sourced
via NVD·04:23 PM
DescriptionSeverityWeakness
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Frequently Asked Questions

1

What is the severity of CVE-2026-27846?

CVE-2026-27846 is considered a high-severity vulnerability due to its potential to allow unauthorized access to sensitive information.

2

How do I fix CVE-2026-27846?

To mitigate CVE-2026-27846, ensure physical security measures are in place to limit unauthorized access to the Linksys MR9600 and Linksys MX4200 devices.

3

What types of devices are affected by CVE-2026-27846?

CVE-2026-27846 affects Linksys MR9600 and Linksys MX4200 models.

4

What information can be compromised due to CVE-2026-27846?

CVE-2026-27846 can lead to access to sensitive information, including the admin web access password.

5

Is remote access affected by CVE-2026-27846?

CVE-2026-27846 specifically pertains to physical access, and does not directly impact remote access capabilities.

Contact

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