CVE-2020-13859: Mofinetwork MOFI4500-4gxelte Firmware

Critical severity, CVSS 9.8. EPSS: 1.2% chance of exploitation in the next 30 days.

An issue was discovered on Mofi Network MOFI4500-4GXeLTE 4.0.8-std devices. A format error in /etc/shadow, coupled with a logic bug in the LuCI - OpenWrt Configuration Interface framework, allows the undocumented system account mofidev to login to the cgi-bin/luci/quick/wizard management interface without a password by abusing a forgotten-password feature.

Affected products

• Mofinetwork MOFI4500-4gxelte Firmware: version 4.0.8-std only

Published 2021-02-01. Last modified 2026-06-17.