CVE-2026-7140

A vulnerability has been found in Totolink A8000RU 7.1cu.643_b20200521. Impacted is the function CsteSystem of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. Such manipulation of the argument HTTP leads to os command injection. The attack may be performed from remote. The exploit has been disclosed to the public 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_new2/blob/main/A8000RU/vul_315/README.md
https://vuldb.com/submit/801110
https://vuldb.com/vuln/359739
https://vuldb.com/vuln/359739/cti
https://www.totolink.net/

Configurations

No configuration.

History

26 Oct 2026, 21:10

Type	Values Removed	Values Added
Summary		(es) Se ha encontrado una vulnerabilidad en Totolink A8000RU 7.1cu.643_b20200521. La función CsteSystem del archivo /cgi-bin/cstecgi.cgi del componente Gestor CGI se ve afectada. Dicha manipulación del argumento HTTP conduce a una inyección de comandos del sistema operativo. El ataque puede realizarse de forma remota. El exploit ha sido divulgado al público y puede ser utilizado.

Information

Published : 2026-04-27 17:16

Updated : 2026-10-26 21:10

NVD link : CVE-2026-7140

Mitre link : CVE-2026-7140

CVE.ORG link : CVE-2026-7140

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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