What is CVE-2026-27846?

CVE-2026-27846 is a medium-severity vulnerability in Linksys Mr9600, classified under Missing Authentication for Critical Function. CVSS score: 6.2/10. Published 2026-02-25.

How severe is CVE-2026-27846?

Medium severity. CVSS v3 base score is 6.2 out of 10.

Auth bypass in Linksys Mr9600

CVE-2026-27846

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…

Vulnerability class: Broken Authentication

EPSS: 0.001 (3.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.2 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

Affected products

Linksys Mr9600 — versions 1.0.4.205530
Linksys Mx4200 — versions 1.0.13.210200

Weakness classification (CWE)

CWE-306 — Missing Authentication for Critical Function

References

a6d3dc9e-0591-4a13-bce7-0f5b31ff6158 (technical-description, third-party-advisory)

Frequently asked questions

What is CVE-2026-27846?: CVE-2026-27846 is a medium-severity vulnerability in Linksys Mr9600, classified under Missing Authentication for Critical Function. CVSS score: 6.2/10. Published 2026-02-25.
How severe is CVE-2026-27846?: Medium severity. CVSS v3 base score is 6.2 out of 10.