Is CVE-2020-36619 actively exploited?

No active exploitation of CVE-2020-36619 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2020-36619 be exploited remotely?

Yes. CVE-2020-36619 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2020-36619?

CVE-2020-36619 has a CVSS score of 9.8 (CRITICAL).

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CRITICAL

CVE-2020-36619

CWE-119Published: December 19, 2022· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official Description

A vulnerability was found in multimon-ng. It has been rated as critical. This issue affects the function add_ch of the file demod_flex.c. The manipulation of the argument ch leads to format string. Upgrading to version 1.2.0 is able to address this issue. The name of the patch is e5a51c508ef952e81a6da25b43034dd1ed023c07. It is recommended to upgrade the affected component. The identifier VDB-216269 was assigned to this vulnerability.

NVD Source

Risk Analysis

The multimon-ng tool contains a critical format string vulnerability in the add_ch function. This flaw could be leveraged by a remote attacker to achieve arbitrary code execution or cause a denial of service.

No public exploit is currently known, and it is not in the KEV catalog. The vulnerability is remotely exploitable with low attack complexity.

Recommended Action

Upgrade to version 1.2.0 or later to address the vulnerability.

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-2020-36619 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-119): Buffer overflow vulnerabilities can lead to arbitrary code execution or denial of service by corrupting adjacent memory.