CVE-2020-5639

Name: CVE-2020-5639
Creator: NVD / NIST
Published: 2020-12-14T03:15:13.59+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 5.01%

Last modified Jun 17, 2026

CVE-2020-5639 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. Directory traversal vulnerability in FileZen versions from V3.0.0 to V4.2.2 allows remote attackers to upload an arbitrary file in a specific directory via unspecified vectors. As a result, an arbitrary OS command may be executed.. EPSS estimates a 5.01% chance of exploitation in the next 30 days.

Description

Directory traversal vulnerability in FileZen versions from V3.0.0 to V4.2.2 allows remote attackers to upload an arbitrary file in a specific directory via unspecified vectors. As a result, an arbitrary OS command may be executed.

Metrics

CVSS 3.1

9.8/10

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

EPSS Probability

5.01%

91.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-22

Affected Software

Vendor	Product	Versions
Soliton	Filezen	>= 3.0.0, <= 4.2.2

References

https://jvn.jp/en/jp/JVN12884935/index.htmlThird Party Advisory
https://jvn.jp/jp/JVN12884935/index.htmlThird Party Advisory
https://www.soliton.co.jp/support/2020/004278.htmlVendor Advisory
https://jvn.jp/en/jp/JVN12884935/index.htmlThird Party Advisory
https://jvn.jp/jp/JVN12884935/index.htmlThird Party Advisory
https://www.soliton.co.jp/support/2020/004278.htmlVendor Advisory

Timeline

Published: Dec 14, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-5639?

How severe is CVE-2020-5639?

CVE-2020-5639 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 5.01% probability of exploitation in the next 30 days.

How do I fix CVE-2020-5639?

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-2020-5639?

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

Scan your code now

Source: NVD / NIST