Is CVE-2020-13537 actively exploited?

No active exploitation of CVE-2020-13537 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2020-13537 be exploited remotely?

No. CVE-2020-13537 requires local access to exploit.

What is the CVSS score of CVE-2020-13537?

CVE-2020-13537 has a CVSS score of 7.8 (HIGH).

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HIGH

CVE-2020-13537

CWE-276Published: November 5, 2020· Updated: Jun 17, 2026

7.8

CVSS v3.1

Official Description

An exploitable local privilege elevation vulnerability exists in the file system permissions of Moxa MXView series 3.1.8 installation. Depending on the vector chosen, an attacker can either add code to a script or replace a binary.By default MXViewService, which starts as a NT SYSTEM authority user executes a series of Node.Js scripts to start additional application functionality and among them the mosquitto executable is also run.

NVD Source

Technical Analysis

CVE-2020-13537 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

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 7.8.