CVE Tools
Sign in

CVE-2026-27846

Missing authentication in Linksys MR9600, Linksys MX4200

Published: Feb 25, 2026Updated: Feb 27, 2026 Sources: CVE List NVDCWE-306
NVD MITRE
6.2CVSSMEDIUM
EPSS Score
0.1%
Top 96.5%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
No Fix Available

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.

CVSS Vector Breakdown

AV:LAC:LPR:NUI:NS:UC:HI:NA:N
Exploitability
AV:LAttack Vector
Local
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:NIntegrity
None
A:NAvailability
None
Open in CVSS calculator →

Weaknesses

CWE-306

Affected Products

MR9600LinksysNetworking Infrastructure
MX4200LinksysNetworking Infrastructure
linksyscommercialUSNetworking Infrastructureaka linksys by cisco

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.

MITRE ATT&CK

2 techniques
Initial Access
View detailed technique mapping

References

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

Timeline

Published
Feb 25, 2026
Last Updated
Feb 27, 2026

Unlock Complete Vulnerability Intelligence

Get the full picture for CVE-2026-27846 and every CVE in our database. Create a free account — no credit card required.

Create Free Account
Plain-language analysis
Impact assessment and exploitation scenario in plain English
Attack graph visualization
Interactive attack path and kill chain mapping
Exploit details & PoC links
ExploitDB, Metasploit, GitHub PoCs with direct links
Nuclei scanner templates
Ready-to-use vulnerability scanner templates
Full remediation guide
Patch instructions, workarounds, and compliance impact
Interactive AI chat
Ask questions about this vulnerability in natural language
Related vulnerabilities
Semantically similar CVEs and attack patterns
REST API & MCP access
Integrate vulnerability data into your workflows