An issue was discovered on Mofi Network MOFI4500-4GXeLTE 4.0.8-std devices.

published 2021-02-01 5y ago modified 2026-06-17 4mo ago also EUVD-2020-6070

cvss: 9.8; version 3.1, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 1.2%; EPSS 1.2% chance of exploitation in 30 days, percentile 68%
public exploits: 0; none known

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.

Patch / fix

links 1

mofinetwork.com/index.php?main_page=page&id=14 advisory

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Exploit prediction

1.19% chance of exploitation in the next 30 days, higher than 68% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by	version	score	vector
NVD	3.1	9.8	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD	2.0	5.0	AV:N/AC:L/Au:N/C:P/I:N/A:N

Classification

Weakness

CWE-287 Improper Authentication
CWE-755 Improper Handling of Exceptional Conditions

References

mofinetwork.com /index.php?main_page=page&id=14
patch, vendor-advisory
criticalstart.com /critical-vulnerabilities-discovered-in-mofi-routers/
technical-description, third-party-advisory

Sources

CVE List CVE-2020-13859
NVD CVE-2020-13859

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