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01 Record

CVE-2021-38458

Moxa MXview Network Management Software

CriticalPUBLISHEDCNA: icscert
CNA base score9.8 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

02 Description

Moxa MXview Network Management Software

03 Exploitation and scoring

Exploitation
Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
SSVC decision
Not assessed by CISA
EPSS probability
1.81% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 78.2% of scored records. A rank, not a probability.
NVD base score
9.8 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD analysis status
Modified. NVD last modified this record on 2026-06-17.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2021-10-12 13:38Z5 YR AGO
Last updated
2024-09-16 18:02Z2 YR AGO
Reserved
2021-08-10
Assigning CNA
icscert
Record state
PUBLISHED
Severity
Critical (CVSS 9.8)
CNA CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weaknesses
  • CWE-74Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')Class
Data version
5.1
Document digest
af9b68c6006b7e74fa9baa5642665e7b05a90c448d6f3514762b48e615911d76

05 Affected products

VendorProductVersionsPlatforms

06 References

07 Remediation

Moxa recommends users do the following: Upgrade to software package v3.2.4 or higher. Users should change their Windows password regularly and use a firewall. If users need to use a multiple-site function, Moxa recommends a firewall to block Port 8883. If users do not have this requirement, Moxa suggests using the firewall to assign the Accessible IP of MXview at the client site.