CVE-2021-40390 | An authentication bypass vulnerability exists in the Web App… | CVSS 10.0 CRITICAL

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.

Metadata

CVE ID: CVE-2021-40390
State: PUBLISHED
Assigner: talos
Reserved: 2021-09-01 00:00 UTC
Published: 2022-04-14 19:56 UTC
Last updated: 2025-04-15 19:08 UTC
Primary CWE: CWE-798
CWE-798: Use of Hard-coded Credentials
Vendor / Product: Moxa / MXView Series
Sources: cve.org · NVD

Severity & Metrics

10.0 CRITICAL CVSS 3.0

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

SSVC — CISA Coordinator

Exploitation: PoC
Automatable: yes
Tech. Impact: total

Affected products (1)

Vendor	Product	Platform	Versions
Moxa	MXView Series	—	3.2.4

Weakness (CWE)

CWE	Source	Description
CWE-798	cna	CWE-798: Use of Hard-coded Credentials

CVSS scores (1)

Score	Severity	Version	Source	Vector
10.0	CRITICAL	3.0	cna	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

References (1)

https://talosintelligence.com/vulnerability_reports/TALOS-2021-1401