Command Injection Vulnerability in MR9600 and MX4200 Products from Vendor
CVE-2026-27848

9.8CRITICAL

Key Information:

Vendor

Linksys
Status
Mr9600
Mx4200
Vendor
CVE Published:
25 February 2026

What is CVE-2026-27848?

A command injection vulnerability exists in the TLS-SRP handshake process of MR9600 and MX4200 products. The flaw arises from inadequate neutralization of special elements, allowing attackers to inject OS commands during the handshake. If exploited, these commands can be executed with root-level privileges, posing significant risks to system integrity and security.

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Affected Version(s)

MR9600 1.0.4.205530

MX4200 1.0.13.210200

References

https://www.syss.de/fileadmin/dokumente/Publikationen/Adv...
third-party-advisorytechnical-description

CVSS V3.1

Score:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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