A broken access control vulnerability found in Advan VD-1 firmware version 230 leads to insecure ADB service. An attacker can send a POST request to cgibin/AdbSetting.cgi to enable ADB without any authentication then take the compromised device as a relay or to install mining software.
Severity
CVSS 3.0
9.8 critical
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
2.9% chance of exploitation in the next 30 days; higher than 87% of CVEs (scores of 2026-10-31)