Critical severity · published Apr 14, 2022
CVE-2021-40390
An authentication bypass vulnerability exists in the Web Application functionality of Moxa MXView Series 3.2.4
9.8
CVSS
2.5%
EPSS
No
On KEV
Description
An authentication bypass vulnerability exists in the Web Application functionality of Moxa MXView Series 3.2.4. A specially-crafted HTTP request can lead to unauthorized access. An attacker can send an HTTP request to trigger this vulnerability.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)2.5% · higher than 84% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
MX
Mxview · Moxa
3.2.4 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-40390
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-40390
Exploit
https://talosintelligence.com/vulnerability_reports/TALOS-2021-1401
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