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CVE-2026-71940

DrayTek VigorSwitch

Description

Multiple DrayTek VigorSwitch models contain a buffer overflow vulnerability in the acl_general_setup Edit ACE function. The vulnerability is caused by copying the name field into a fixed-size buffer without length validation. A remote attacker can trigger this vulnerability via crafted input, causing a denial of service or potentially executing arbitrary commands. Exploitation requires valid administrative credentials for the device-s web management interface.

CVSS 7.2EPSS 0.47800000000000004%Risk 0.75
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Published
2026-08-24 18:17:19
Affected versions
unknown
Type
Firmware
Last modified
2026-08-26 17:08:22
Vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H