CVE-2026-9404

A vulnerability was identified in Totolink A8000RU 7.1cu.643_b20200521. This affects the function setDdnsCfg of the file /cgi-bin/cstecgi.cgi of the component Web Management Interface. Such manipulation of the argument provider leads to os command injection. The attack may be launched remotely. The exploit is publicly available and might be used.

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/Litengzheng/vuldb_new2/blob/main/A8000RU/vul_336/README.md
https://vuldb.com/submit/813439
https://vuldb.com/vuln/365385
https://vuldb.com/vuln/365385/cti
https://www.totolink.net/

Configurations

No configuration.

History

23 Jul 2026, 11:10

Type	Values Removed	Values Added
Summary		(es) Se identificó una vulnerabilidad en Totolink A8000RU 7.1cu.643_b20200521. Esto afecta a la función setDdnsCfg del archivo /cgi-bin/cstecgi.cgi del componente Interfaz de Gestión Web. Dicha manipulación del argumento provider conduce a una inyección de comandos del sistema operativo. El ataque puede lanzarse de forma remota. El exploit está disponible públicamente y podría ser utilizado.

24 May 2026, 23:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-05-24 23:16

Updated : 2026-07-23 11:10

NVD link : CVE-2026-9404

Mitre link : CVE-2026-9404

CVE.ORG link : CVE-2026-9404

JSON object : View

Products Affected

No product.

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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