CVE-2026-5854

A vulnerability was detected in Totolink A7100RU 7.4cu.2313_b20191024. Affected by this issue is the function setWiFiEasyCfg of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. Performing a manipulation of the argument merge results in os command injection. It is possible to initiate the attack remotely. The exploit is now 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_new/blob/main/A7100RU/vul_160/README.md
https://vuldb.com/submit/791276
https://vuldb.com/vuln/356380
https://vuldb.com/vuln/356380/cti
https://www.totolink.net/

Configurations

No configuration.

History

26 Oct 2026, 21:10

Type	Values Removed	Values Added
Summary		(es) Se detectó una vulnerabilidad en Totolink A7100RU 7.4cu.2313_b20191024. Afectada por este problema está la función setWiFiEasyCfg del archivo /cgi-bin/cstecgi.cgi del componente Gestor CGI. Realizar una manipulación del argumento merge resulta en inyección de comandos del sistema operativo. Es posible iniciar el ataque de forma remota. El exploit es ahora público y puede ser utilizado.

Information

Published : 2026-04-09 07:16

Updated : 2026-10-26 21:10

NVD link : CVE-2026-5854

Mitre link : CVE-2026-5854

CVE.ORG link : CVE-2026-5854

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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