CVE-2021-38454

Name: CVE-2021-38454
Creator: NVD / NIST
Published: 2021-10-12T14:15:08.443+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 10/10EPSS 15.79%

Last modified Jun 17, 2026

CVE-2021-38454 is a critical-severity vulnerability rated 10/10 on the CVSS scale. A path traversal vulnerability in the Moxa MXview Network Management software Versions 3.x to 3.2.2 may allow an attacker to create or overwrite critical files used to execute code, such as programs or libraries.. EPSS estimates a 15.79% chance of exploitation in the next 30 days.

Description

A path traversal vulnerability in the Moxa MXview Network Management software Versions 3.x to 3.2.2 may allow an attacker to create or overwrite critical files used to execute code, such as programs or libraries.

Metrics

CVSS 3.1

10/10

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

EPSS Probability

15.79%

96.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Moxa	Mxview	>= 3.0, <= 3.2.2

References

https://us-cert.cisa.gov/ics/advisories/icsa-21-278-03Third Party Advisory, US Government Resource
https://us-cert.cisa.gov/ics/advisories/icsa-21-278-03Third Party Advisory, US Government Resource

Timeline

Published: Oct 12, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-38454?

How severe is CVE-2021-38454?

CVE-2021-38454 has a CVSS score of 10/10 (CRITICAL severity). The EPSS model estimates a 15.79% probability of exploitation in the next 30 days.

How do I fix CVE-2021-38454?

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-2021-38454?

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

Scan your code now

Source: NVD / NIST