CVE-2021-40390 — CRITICAL (9.8)

Vulnerability 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 Score

9.8

CRITICAL

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

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Moxa	Mxview	3.2.4

Related Weaknesses (CWE)

CWE-798

References

https://talosintelligence.com/vulnerability_reports/TALOS-2021-1401ExploitThird Party Advisory
https://talosintelligence.com/vulnerability_reports/TALOS-2021-1401ExploitThird Party Advisory

FAQ

What is CVE-2021-40390?

CVE-2021-40390 is a vulnerability with a CVSS score of 9.8 (CRITICAL). 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 a...

How severe is CVE-2021-40390?

CVE-2021-40390 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.

Is there a patch for CVE-2021-40390?

Check the references section above for vendor advisories and patch information. Affected products include: Moxa Mxview.