Vulnerability · Published Feb 25, 2026 · Assigned by ENISA
CVE-2026-27846Missing authentication in Linksys MR9600, Linksys MX4200
Medium 6.2
In plain English
A medium-severity missing authentication in MR9600 from Linksys. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 5% of all known vulnerabilities).
Severity (CVSS 3.1)6.2Medium
Exploit odds (30 days)0.2%top 95.1% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
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 products (as reported)
Weakness: CWE-306 · Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
References
- https://www.syss.de/fileadmin/dokumente/Publikationen/Advisories/SYSS-2025-002.txt third-party-advisory, technical-description