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CVE-2020-15835

24
FAUCET Score

CVE-2020-15835 affects Mofi Network MOFI4500-4GXeLTE 4.1.5-std devices, where an undocumented authentication backdoor allows remote root access. This critical vulnerability (CVSS 9.8) enables an unauthenticated attacker with the private key to gain full control over the device, leading to complete compromise of confidentiality, integrity, and availability. While no public exploit code or active exploitation has been observed, and community discussion is minimal, the high FAUCET Risk Score indicates significant potential impact.

Impacted Technologies

VendorProductVersion(s)CPE
4.1.5-stdCPE matchmatch criteria
cpe:2.3:o:mofinetwork:mofi4500-4gxelte_firmware:4.1.5-std:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.67%
Probability of exploitation in next 30 days
EPSS Percentile
74.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0167 is in the 62nd percentile among its peer group of 36,833 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

mofinetwork.com / index.php
PatchVendor Advisory
criticalstart.com / critical-vulnerabilities-discovered-in-mofi-routers
Technical DescriptionThird Party Advisory