CVE-2026-5853

A security vulnerability has been detected in Totolink A7100RU 7.4cu.2313_b20191024. Affected by this vulnerability is the function setIpv6LanCfg of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. Such manipulation of the argument addrPrefixLen leads to os command injection. The attack may be performed from remote. The exploit has been disclosed publicly 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_159/README.md
https://vuldb.com/submit/791274
https://vuldb.com/vuln/356379
https://vuldb.com/vuln/356379/cti
https://www.totolink.net/

Configurations

No configuration.

History

26 Oct 2026, 21:10

Type	Values Removed	Values Added
Summary		(es) Se ha detectado una vulnerabilidad de seguridad en Totolink A7100RU 7.4cu.2313_b20191024. Afectada por esta vulnerabilidad es la función setIpv6LanCfg del archivo /cgi-bin/cstecgi.cgi del componente Gestor CGI. Dicha manipulación del argumento addrPrefixLen conduce a inyección de comandos del sistema operativo. El ataque puede realizarse de forma remota. El exploit ha sido divulgado públicamente y puede ser utilizado.

Information

Published : 2026-04-09 07:16

Updated : 2026-10-26 21:10

NVD link : CVE-2026-5853

Mitre link : CVE-2026-5853

CVE.ORG link : CVE-2026-5853

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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