CVE-2020-4019

Name: CVE-2020-4019
Creator: NVD / NIST
Published: 2020-06-01T07:15:11+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.8/10EPSS 0.36%

Last modified Jun 17, 2026

CVE-2020-4019 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. The file editing functionality in the Atlassian Companion App before version 1.0.0 allows local attackers to have the app run a different executable in place of the app's cmd.exe via a untrusted search path vulnerability.. EPSS estimates a 0.36% chance of exploitation in the next 30 days.

Description

The file editing functionality in the Atlassian Companion App before version 1.0.0 allows local attackers to have the app run a different executable in place of the app's cmd.exe via a untrusted search path vulnerability.

Metrics

CVSS 3.1

7.8/10

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS Probability

0.36%

27.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-426

Affected Software

Vendor	Product	Versions
Atlassian	Companion	< 1.0.0

References

https://jira.atlassian.com/browse/CONFSERVER-59734Vendor Advisory
https://jira.atlassian.com/browse/CONFSERVER-59734Vendor Advisory

Timeline

Published: Jun 1, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-4019?

How severe is CVE-2020-4019?

CVE-2020-4019 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 0.36% probability of exploitation in the next 30 days.

How do I fix CVE-2020-4019?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-4019?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST