CVE-2026-3301

A security flaw has been discovered in Totolink N300RH 6.1c.1353_B20190305. Affected by this vulnerability is the function setWebWlanIdx of the file /cgi-bin/cstecgi.cgi of the component Web Management Interface. Performing a manipulation of the argument webWlanIdx results in os command injection. The attack can be initiated remotely. The exploit has been released to the public and may be used for attacks.

CVSS v3 9.8 CRITICAL
CVSS v2.0 10.0 HIGH

9.8^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

10.0^/10

CVSS v2.0 : HIGH

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

Exploitability : 10.0 / Impact : 10.0

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact COMPLETE

Integrity Impact COMPLETE

Availability Impact COMPLETE

References

Link	Resource
https://github.com/xyh4ck/iot_poc/blob/main/TOTOLINK/N300RHv4/01_setWebWlanIdx_RCE/README.md	Exploit Third Party Advisory
https://vuldb.com/?ctiid.348052	Permissions Required VDB Entry
https://vuldb.com/?id.348052	Third Party Advisory VDB Entry
https://vuldb.com/?submit.761297	Third Party Advisory VDB Entry
https://www.totolink.net/	Product

Configurations

Configuration 1 (hide)

AND

OR	cpe:2.3:o:totolink:n300rh_firmware:6.1c.1349_b20181018:::::::*
	cpe:2.3:o:totolink:n300rh_firmware:6.1c.1353_b20190305:::::::*

cpe:2.3:h:totolink:n300rh:4.0:*:*:*:*:*:*:*

History

No history.

Information

Published : 2026-02-27 06:18

Updated : 2026-02-27 15:36

NVD link : CVE-2026-3301

Mitre link : CVE-2026-3301

CVE.ORG link : CVE-2026-3301

JSON object : View

Products Affected

totolink

n300rh_firmware
n300rh

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')

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Affected by this vulnerability is the function setWebWlanIdx of the file /cgi-bin/cstecgi.cgi of the component Web Management Interface. Performing a manipulation of the argument webWlanIdx results in os command injection. The attack can be initiated remotely. The exploit has been released to the public and may be used for attacks."}, {"lang": "es", "value": "Se ha descubierto una falla de seguridad en Totolink N300RH 6.1c.1353_B20190305, la cual afecta a la funci\u00f3n setWebWlanIdx del archivo /cgi-bin/cstecgi.cgi del componente Interfaz de Gesti\u00f3n Web. Manipular el argumento webWlanIdx resulta en inyecci\u00f3n de comandos del sistema operativo. El ataque puede iniciarse en remoto. El exploit ha sido publicado y puede ser utilizado para ataques."}], "lastModified": "2026-02-27T15:36:49.730", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:totolink:n300rh_firmware:6.1c.1349_b20181018:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "FBEBCE02-A9A6-48EE-BCEB-DA0D345E899B"}, {"criteria": "cpe:2.3:o:totolink:n300rh_firmware:6.1c.1353_b20190305:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "53CB74DE-93CC-4E74-860E-233303AF77ED"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:totolink:n300rh:4.0:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "28EE5BE0-2048-42F8-BA04-0765D82F36BE"}], "operator": "OR"}], "operator": "AND"}], "sourceIdentifier": "cna@vuldb.com"}