Is CVE-2020-20219 actively exploited?

No active exploitation of CVE-2020-20219 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2020-20219 be exploited remotely?

Yes. CVE-2020-20219 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2020-20219?

CVE-2020-20219 has a CVSS score of 6.5 (MEDIUM).

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MEDIUM

CVE-2020-20219

CWE-787Published: July 21, 2021· Updated: Jun 17, 2026

6.5

CVSS v3.1

Official Description

Mikrotik RouterOs 6.44.6 (long-term tree) suffers from a memory corruption vulnerability in the /nova/bin/igmp-proxy process. An authenticated remote attacker can cause a Denial of Service (NULL pointer dereference).

NVD Source

Technical Analysis

CVE-2020-20219 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

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

A successful exploit results in availability disruption (denial of service), with a CVSS base score of 6.5.

From a weakness classification perspective (CWE-787): Out-of-bounds write vulnerabilities can lead to data corruption, crashes, or arbitrary code execution.