Is CVE-2019-20406 actively exploited?

No active exploitation of CVE-2019-20406 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2019-20406 be exploited remotely?

No. CVE-2019-20406 requires local access to exploit.

What is the CVSS score of CVE-2019-20406?

CVE-2019-20406 has a CVSS score of 7.8 (HIGH).

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HIGH

CVE-2019-20406

CWE-427Published: February 6, 2020· Updated: Jun 17, 2026

7.8

CVSS v3.1

Official Description

The usage of Tomcat in Confluence on the Microsoft Windows operating system before version 7.0.5, and from version 7.1.0 before version 7.1.1 allows local system attackers who have permission to write a DLL file in a directory in the global path environmental variable variable to inject code & escalate their privileges via a DLL hijacking vulnerability.

NVD Source

Technical Analysis

CVE-2019-20406 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation does not require any privileges, though user interaction (Required) is needed, which slightly reduces the risk of mass automated attacks.

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.