CVE-2023-47254: DrayTek VIGOR167 Firmware

Critical severity, CVSS 9.8. EPSS: 2.2% chance of exploitation in the next 30 days.

An OS Command Injection in the CLI interface on DrayTek Vigor167 version 5.2.2, allows remote attackers to execute arbitrary system commands and escalate privileges via any account created within the web interface.

Affected products

• DrayTek VIGOR167 Firmware: version 5.2.2 only

Published 2023-12-09. Last modified 2026-06-17.