CVE-2020-21999: Iwt Facesentry Access Control System Firmware

High severity, CVSS 8.8. EPSS: 5.2% chance of exploitation in the next 30 days.

iWT Ltd FaceSentry Access Control System 6.4.8 suffers from an authenticated OS command injection vulnerability using default credentials. This can be exploited to inject and execute arbitrary shell commands as the root user via the 'strInIP' POST parameter in pingTest PHP script.

Affected products

• Iwt Facesentry Access Control System Firmware: version 5.7.0 only; version 5.7.2 only; version 6.4.8 only

Published 2021-05-04. Last modified 2026-06-17.