CVE-2019-3931: Crestron AM-100 Firmware

High severity, CVSS 8.8. EPSS: 5.8% chance of exploitation in the next 30 days.

Crestron AM-100 with firmware 1.6.0.2 and AM-101 with firmware 2.7.0.2 are vulnerable to argumention injection to the curl binary via crafted HTTP requests to return.cgi. A remote, authenticated attacker can use this vulnerability to upload files to the device and ultimately execute code as root.

Affected products

  • Crestron AM-100 Firmware: version 1.6.0.2 only
  • Crestron AM-101 Firmware: version 2.7.0.2 only

Published 2019-04-30. Last modified 2026-06-17.