What’s Vulnerable › Vulnerabilities

CVE-2020-13859

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-02-01 · updated 2026-06-17
• Weakness: CWE-287

Description

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: 4.0.8-std

References

• https://mofinetwork.com/index.php?main_page=page&id=14
• https://www.criticalstart.com/critical-vulnerabilities-discovered-in-mofi-routers/
• https://mofinetwork.com/index.php?main_page=page&id=14
• https://www.criticalstart.com/critical-vulnerabilities-discovered-in-mofi-routers/

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