CVE-2026-4558

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. 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 command injection. The attack may be launched remotely. The exploit has been published and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

8.8 /10

CVSS v3 : HIGH

V3 Legend

Vector :

Exploitability : 2.8 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

9.0 /10

CVSS v2.0 : HIGH

V2 Legend

Vector : AV:N/AC:L/Au:S/C:C/I:C/A:C

Exploitability : 8.0 / Impact : 10.0

Access Vector NETWORK

Access Complexity LOW

Authentication SINGLE

Confidentiality Impact COMPLETE

Integrity Impact COMPLETE

Availability Impact COMPLETE

References
Link Resource
https://github.com/utmost3/cve/issues/1 Exploit Third Party Advisory Issue Tracking
https://vuldb.com/?ctiid.352385 Permissions Required VDB Entry
https://vuldb.com/?id.352385 Third Party Advisory VDB Entry
https://vuldb.com/?submit.775036 Third Party Advisory VDB Entry
https://www.linksys.com/ Product
Configurations

Configuration 1 (hide)

AND
cpe:2.3:o:linksys:mr9600_firmware:2.0.6.206937:*:*:*:*:*:*:*
cpe:2.3:h:linksys:mr9600:-:*:*:*:*:*:*:*
History

30 Apr 2026, 16:34

Type Values Removed Values Added
References () https://github.com/utmost3/cve/issues/1 - () https://github.com/utmost3/cve/issues/1 - Exploit, Third Party Advisory, Issue Tracking
References () https://vuldb.com/?ctiid.352385 - () https://vuldb.com/?ctiid.352385 - Permissions Required, VDB Entry
References () https://vuldb.com/?id.352385 - () https://vuldb.com/?id.352385 - Third Party Advisory, VDB Entry
References () https://vuldb.com/?submit.775036 - () https://vuldb.com/?submit.775036 - Third Party Advisory, VDB Entry
References () https://www.linksys.com/ - () https://www.linksys.com/ - Product
First Time Linksys mr9600 Firmware
Linksys mr9600
Linksys
CPE cpe:2.3:o:linksys:mr9600_firmware:2.0.6.206937:*:*:*:*:*:*:*
cpe:2.3:h:linksys:mr9600:-:*:*:*:*:*:*:*
Summary
  • (es) Se ha encontrado una falla en Linksys MR9600 2.0.6.206937. La función afectada es smartConnectConfigure del archivo SmartConnect.lua. La manipulación del argumento configApSsid/configApPassphrase/srpLogin/srpPassword puede llevar a una inyección de comandos del sistema operativo. El ataque puede lanzarse de forma remota. El exploit ha sido publicado y puede ser utilizado. Se contactó al proveedor con antelación sobre esta divulgación, pero no respondió de ninguna manera.

22 Mar 2026, 18:16

Type Values Removed Values Added
New CVE
Information

Published : 2026-03-22 18:16

Updated : 2026-04-30 16:34

NVD link : CVE-2026-4558

Mitre link : CVE-2026-4558

CVE.ORG link : CVE-2026-4558

JSON object : View

Products Affected

linksys

  • mr9600
  • mr9600_firmware
CWE
CWE-77

Improper Neutralization of Special Elements used in a Command ('Command Injection')

CWE-78

Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')