How severe is CVE-2020-13858?

CVE-2020-13858 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2020-13858 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (69th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-13858?

CVE-2020-13858 primarily affects Mofinetwork Mofi4500-4gxelte Firmware. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2020-13858?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2020-13858 published?

CVE-2020-13858 was published on 2021-02-01 and last updated on 2026-06-17.

CVE-2020-13858

CVE-2020-13858 is a critical-severity vulnerability in Mofinetwork Mofi4500-4gxelte Firmware with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-798.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 1% (69th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-798
Affected product: Mofinetwork Mofi4500-4gxelte Firmware
Published: 2021-02-01
Last modified: 2026-06-17

Description

An issue was discovered on Mofi Network MOFI4500-4GXeLTE 3.6.1-std and 4.0.8-std devices. They contain two undocumented administrator accounts. The sftp and mofidev accounts are defined in /etc/passwd and the password is not unique across installations.

Frequently asked questions

What is CVE-2020-13858?: An issue was discovered on Mofi Network MOFI4500-4GXeLTE 3.6.1-std and 4.0.8-std devices. They contain two undocumented administrator accounts. The sftp and mofidev accounts are defined in /etc/passwd and the password is not unique across installations.
How severe is CVE-2020-13858?: CVE-2020-13858 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2020-13858 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (69th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-13858?: CVE-2020-13858 primarily affects Mofinetwork Mofi4500-4gxelte Firmware. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2020-13858?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2020-13858 published?: CVE-2020-13858 was published on 2021-02-01 and last updated on 2026-06-17.

References

Affected products (2)

cpe:2.3:o:mofinetwork:mofi4500-4gxelte_firmware:3.6.1-std:*:*:*:*:*:*:*
cpe:2.3:o:mofinetwork:mofi4500-4gxelte_firmware:4.0.8-std:*:*:*:*:*:*:*

More vulnerabilities in Mofinetwork Mofi4500-4gxelte Firmware

CVE-2020-15836 — Critical (CVSS 9.8): An issue was discovered on Mofi Network MOFI4500-4GXeLTE 4.1.5-std devices. The authentication function passes…
CVE-2020-15835 — Critical (CVSS 9.8): An issue was discovered on Mofi Network MOFI4500-4GXeLTE 4.1.5-std devices. The authentication function contains…
CVE-2020-15833 — Critical (CVSS 9.8): An issue was discovered on Mofi Network MOFI4500-4GXeLTE 4.1.5-std devices. The Dropbear SSH daemon has been modified…
CVE-2020-13859 — Critical (CVSS 9.8): An issue was discovered on Mofi Network MOFI4500-4GXeLTE 4.0.8-std devices. A format error in /etc/shadow, coupled with…
CVE-2020-15834 — High (CVSS 7.5): An issue was discovered on Mofi Network MOFI4500-4GXeLTE 4.1.5-std devices. The wireless network password is exposed in…
CVE-2020-15832 — High (CVSS 7.5): An issue was discovered on Mofi Network MOFI4500-4GXeLTE 4.1.5-std devices. The poof.cgi script contains undocumented…

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