CVE-2020-8797: Juplink RX4-1500 Firmware

Medium severity, CVSS 6.7. EPSS: 0.9% chance of exploitation in the next 30 days.

Juplink RX4-1500 v1.0.3 allows remote attackers to gain root access to the Linux subsystem via an unsanitized exec call (aka Command Line Injection), if the undocumented telnetd service is enabled and the attacker can authenticate as admin from the local network.

Affected products

• Juplink RX4-1500 Firmware: version 1.0.3 only

Published 2020-04-23. Last modified 2026-06-17.