CVE-2026-71933

Multiple DrayTek VigorSwitch models contain unauthorized operation vulnerabilities in multiple syslog functions. The vulnerability is caused by missing authorization checks. A remote attacker can trigger these vulnerabilities via crafted requests to modify configuration, restart services, save startup configuration, or clear logs.

CVSS v3 9.1 CRITICAL

9.1^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.2

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://www.draytek.com/about/security-advisory/multiple-vulnerabilities-in-vigorswitch-series-august-2026/
https://www.vulncheck.com/advisories/draytek-vigorswitch-multiple-models-missing-authorization-in-syslog-functions

Configurations

No configuration.

History

12 Oct 2026, 22:10

Type	Values Removed	Values Added
Summary		(es) Múltiples modelos de DrayTek VigorSwitch contienen vulnerabilidades de operación no autorizada en múltiples funciones de syslog. La vulnerabilidad es causada por la falta de comprobaciones de autorización. Un atacante remoto puede desencadenar estas vulnerabilidades a través de solicitudes manipuladas para modificar la configuración, reiniciar servicios, guardar la configuración de inicio o borrar registros.

Information

Published : 2026-08-24 18:17

Updated : 2026-10-12 22:10

NVD link : CVE-2026-71933

Mitre link : CVE-2026-71933

CVE.ORG link : CVE-2026-71933

JSON object : View

Products Affected

No product.

CWE

CWE-862

Missing Authorization

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The vulnerability is caused by missing authorization checks. A remote attacker can trigger these vulnerabilities via crafted requests to modify configuration, restart services, save startup configuration, or clear logs."}, {"lang": "es", "value": "M\u00faltiples modelos de DrayTek VigorSwitch contienen vulnerabilidades de operaci\u00f3n no autorizada en m\u00faltiples funciones de syslog. La vulnerabilidad es causada por la falta de comprobaciones de autorizaci\u00f3n. Un atacante remoto puede desencadenar estas vulnerabilidades a trav\u00e9s de solicitudes manipuladas para modificar la configuraci\u00f3n, reiniciar servicios, guardar la configuraci\u00f3n de inicio o borrar registros."}], "lastModified": "2026-10-12T22:10:00.247", "sourceIdentifier": "disclosure@vulncheck.com"}