Is CVE-2021-27715 actively exploited?

No active exploitation of CVE-2021-27715 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2021-27715 be exploited remotely?

Yes. CVE-2021-27715 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2021-27715?

CVE-2021-27715 has a CVSS score of 9.8 (CRITICAL).

HOME VULNERABILITIESCVE-2021-27715

CRITICAL

CVE-2021-27715

CWE-287Published: September 8, 2023· Updated: Jul 9, 2026

9.8

CVSS v3.1

Official Description

An issue was discovered in MoFi Network MOFI4500-4GXeLTE-V2 3.5.6-xnet-5052 allows attackers to bypass the authentication and execute arbitrary code via crafted HTTP request.

NVD Source

Risk Analysis

The MoFi Network MOFI4500 router firmware contains an authentication bypass vulnerability that permits arbitrary code execution via crafted HTTP requests. This critical flaw allows remote attackers to take full control of the device.

There is no known public exploit for this vulnerability, and it is not in CISA KEV. It is remotely exploitable with low attack complexity.

Recommended Action

Update the device firmware to the latest available version provided by the manufacturer.

Generated by the CTIWATCH analysis pipeline from this CVE's metadata (CVSS, EPSS, KEV status, exploit intelligence). Verify against vendor advisories before acting.

Technical Analysis

CVE-2021-27715 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.

From a weakness classification perspective (CWE-287): Authentication bypass vulnerabilities allow attackers to access protected resources without valid credentials.