CVE-2020-5739: Grandstream GXP1610 Firmware

High severity, CVSS 8.8. EPSS: 5.3% chance of exploitation in the next 30 days.

Grandstream GXP1600 series firmware 1.0.4.152 and below is vulnerable to authenticated remote command execution when an attacker adds an OpenVPN up script to the phone's VPN settings via the "Additional Settings" field in the web interface. When the VPN's connection is established, the user defined script is executed with root privileges.

Affected products

• Grandstream GXP1610 Firmware: up to and including 1.0.4.152
• Grandstream GXP1615 Firmware: up to and including 1.0.4.152
• Grandstream GXP1620 Firmware: up to and including 1.0.4.152
• Grandstream GXP1625 Firmware: up to and including 1.0.4.152
• Grandstream GXP1628 Firmware: up to and including 1.0.4.152
• Grandstream GXP1630 Firmware: up to and including 1.0.4.152

Published 2020-04-14. Last modified 2026-06-17.