CVE-2026-71931 - Multiple DrayTek VigorSwitch models contain a command injection vulnerability in the tftp_upgrade function. The vulnerability is caused by insufficient filtering before the filename field is concatenated into a command. A remote attacker can trigger this vulnerability via crafted input to execute arbitrary commands with root privileges. Exploitation requires valid administrative credentials for the device's web management interface. - 漏洞详情

漏洞编号：CVE-2026-71931

风险等级：高危

漏洞来源：CVE

CVE 编号：CVE-2026-71931

CNNVD 编号：-

厂商/产品：- / -

影响范围：-

CWE：CWE-78

发布/更新时间：2026-08-24 / 2026-08-27

漏洞描述

Multiple DrayTek VigorSwitch models contain a command injection vulnerability in the tftp_upgrade function. The vulnerability is caused by insufficient filtering before the filename field is concatenated into a command. A remote attacker can trigger this vulnerability via crafted input to execute arbitrary commands with root privileges. Exploitation requires valid administrative credentials for the device's web management interface.

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