CVE-2021-38454

Mxview vulnerability

CVSS

10.0

EPSS

15.8%

EPSS pct

97th

Exploited

No known

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.

Affected vendor

Moxa

Affected product

Mxview

CVSS vector

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

Weakness type (CWE)

CWE-284 — Improper Access Control
CWE-22 — Path Traversal

Published

2021-10-12

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring no privileges, no user interaction. Successful exploitation leads to high impact to confidentiality, high impact to integrity, high impact to availability.

Its EPSS score of 15.8% reflects a moderate probability of exploitation activity in the wild over the next 30 days, placing it above 97% of all scored CVEs.

Check your external exposure to CVE-2021-38454

Confirm whether Moxa Mxview is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2021-38454.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2021-38454

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2021-38454 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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