RCE in Linksys Mr9600
CVE-2026-4558
A flaw has been found in Linksys MR9600 2.0.6.206937. Affected is the function smartConnectConfigure of the file SmartConnect.lua. Executing a manipulation of the argument configApSsid/configApPassphrase/srpLogin/srpPassword can lead to os…
Vulnerability class: Command Injection (OS Command Injection)
EPSS: 0.006 (69.6th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Linksys Mr9600 — versions 2.0.6.206937
- Linksys Mr9600_firmware — versions 2.0.6.206937
Weakness classification (CWE)
References
- VDB-352385 | Linksys MR9600 SmartConnect.lua smartConnectConfigure os command injection (technical-description, Third Party Advisory, VDB Entry, vdb-entry)
- VDB-352385 | CTI Indicators (IOB, IOC, TTP, IOA) (signature, Permissions Required, permissions-required, VDB Entry)
- Submit #775036 | Linksys MR9600 firmware 2.0.6.206937 OS Command Injection (Third Party Advisory, VDB Entry, third-party-advisory)
- cna@vuldb.com (issue-tracking, Exploit, Third Party Advisory, exploit, Issue Tracking)
- cna@vuldb.com (Product, product)
Frequently asked questions
- What is CVE-2026-4558?
- CVE-2026-4558 is a high-severity vulnerability in Linksys Mr9600, classified under Command Injection. CVSS score: 8.8/10. Published 2026-03-22.
- How severe is CVE-2026-4558?
- High severity. CVSS v3 base score is 8.8 out of 10.