CVE-2026-71932

Multiple DrayTek VigorSwitch models contain a directory traversal vulnerability in the getSyslogFile function. The vulnerability is caused by insufficient validation of the option field. A remote attacker can trigger this vulnerability via crafted input containing path traversal sequences to access arbitrary files on the device. Exploitation requires valid administrative credentials for the device's web management interface.

CVSS v3 4.9 MEDIUM

4.9^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.2 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required HIGH

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

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-path-traversal-via-getsyslogfile

Configurations

No configuration.

History

12 Oct 2026, 22:10

Type	Values Removed	Values Added
Summary		(es) Múltiples modelos de DrayTek VigorSwitch contienen una vulnerabilidad de salto de directorio en la función getSyslogFile. La vulnerabilidad es causada por una validación insuficiente del campo option. Un atacante remoto puede desencadenar esta vulnerabilidad a través de una entrada manipulada que contiene secuencias de salto de ruta para acceder a archivos arbitrarios en el dispositivo. La explotación requiere credenciales administrativas válidas para la interfaz de gestión web del dispositivo.

Information

Published : 2026-08-24 18:17

Updated : 2026-10-12 22:10

NVD link : CVE-2026-71932

Mitre link : CVE-2026-71932

CVE.ORG link : CVE-2026-71932

JSON object : View

Products Affected

No product.

CWE

CWE-22

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

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The vulnerability is caused by insufficient validation of the option field. A remote attacker can trigger this vulnerability via crafted input containing path traversal sequences to access arbitrary files on the device. Exploitation requires valid administrative credentials for the device's web management interface."}, {"lang": "es", "value": "M\u00faltiples modelos de DrayTek VigorSwitch contienen una vulnerabilidad de salto de directorio en la funci\u00f3n getSyslogFile. La vulnerabilidad es causada por una validaci\u00f3n insuficiente del campo option. Un atacante remoto puede desencadenar esta vulnerabilidad a trav\u00e9s de una entrada manipulada que contiene secuencias de salto de ruta para acceder a archivos arbitrarios en el dispositivo. La explotaci\u00f3n requiere credenciales administrativas v\u00e1lidas para la interfaz de gesti\u00f3n web del dispositivo."}], "lastModified": "2026-10-12T22:10:00.247", "sourceIdentifier": "disclosure@vulncheck.com"}