CVE-2019-10662: Grandstream UCM6204 Firmware

High severity, CVSS 8.8. EPSS: 43.9% chance of exploitation in the next 30 days.

Grandstream UCM6204 before 1.0.19.20 devices allow remote authenticated users to execute arbitrary code via shell metacharacters in the backupUCMConfig file-backup parameter to the /cgi? URI.

Affected products

• Grandstream UCM6204 Firmware: before 1.0.19.20 (fixed in 1.0.19.20)

Published 2019-03-30. Last modified 2026-06-17.