CVE-2026-6138

A flaw has been found in Totolink A7100RU 7.4cu.2313_b20191024. The impacted element is the function setAccessDeviceCfg of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. This manipulation of the argument mac causes os command injection. The attack can be initiated remotely. The exploit has been published and may 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_new/blob/main/A7100RU/vul_191/README.md
https://vuldb.com/submit/792980
https://vuldb.com/vuln/357002
https://vuldb.com/vuln/357002/cti
https://www.totolink.net/

Configurations

No configuration.

History

26 Oct 2026, 22:10

Type	Values Removed	Values Added
Summary		(es) Se ha encontrado una vulnerabilidad en Totolink A7100RU 7.4cu.2313_b20191024. El elemento afectado es la función setAccessDeviceCfg del archivo /cgi-bin/cstecgi.cgi del componente gestor CGI. Esta manipulación del argumento mac causa inyección de comandos del sistema operativo. El ataque puede iniciarse de forma remota. El exploit ha sido publicado y puede ser utilizado.

Information

Published : 2026-04-13 00:16

Updated : 2026-10-26 22:10

NVD link : CVE-2026-6138

Mitre link : CVE-2026-6138

CVE.ORG link : CVE-2026-6138

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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