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Vulnerability Details :

CVE-2021-3774

Summary
Assigner-INCIBE
Assigner Org ID-0cbda920-cd7f-484a-8e76-bf7f4b7f4516
Published At-05 Nov, 2021 | 19:41
Updated At-23 Apr, 2025 | 19:24
Rejected At-
Credits

Meross MSS550X Missing Encryption of Sensitive Data

Meross Smart Wi-Fi 2 Way Wall Switch (MSS550X), on its 3.1.3 version and before, creates an open Wi-Fi Access Point without the required security measures in its initial setup. This could allow a remote attacker to obtain the Wi-Fi SSID as well as the password configured by the user from Meross app via Http/JSON plain request.

Vendors
-
Not available
Products
-
Metrics (CVSS)
VersionBase scoreBase severityVector
Weaknesses
Attack Patterns
Solution/Workaround
References
HyperlinkResource Type
EPSS History
Score
Latest Score
-
N/A
No data available for selected date range
Percentile
Latest Percentile
-
N/A
No data available for selected date range
Stakeholder-Specific Vulnerability Categorization (SSVC)
▼Common Vulnerabilities and Exposures (CVE)
cve.org
Assigner:INCIBE
Assigner Org ID:0cbda920-cd7f-484a-8e76-bf7f4b7f4516
Published At:05 Nov, 2021 | 19:41
Updated At:23 Apr, 2025 | 19:24
Rejected At:
▼CVE Numbering Authority (CNA)
Meross MSS550X Missing Encryption of Sensitive Data

Meross Smart Wi-Fi 2 Way Wall Switch (MSS550X), on its 3.1.3 version and before, creates an open Wi-Fi Access Point without the required security measures in its initial setup. This could allow a remote attacker to obtain the Wi-Fi SSID as well as the password configured by the user from Meross app via Http/JSON plain request.

Affected Products
Vendor
Meross
Product
Meross Smart Wi-Fi 2 Way Wall Switch
Default Status
unaffected
Versions
Affected
  • From 0 through 3.1.3 (custom)
Problem Types
TypeCWE IDDescription
CWECWE-319CWE-319 Cleartext Transmission of Sensitive Information
Type: CWE
CWE ID: CWE-319
Description: CWE-319 Cleartext Transmission of Sensitive Information
Metrics
VersionBase scoreBase severityVector
3.17.4HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N
Version: 3.1
Base score: 7.4
Base severity: HIGH
Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions

This vulnerability has been solved by Meross in MSS550X version 3.2.3.

Configurations
Workarounds
Exploits
Credits
finder
Gerard Fuguet Morales
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://www.incibe.es/en/incibe-cert/notices/aviso/meross-mss550x-missing-encryption-sensitive-data
x_refsource_CONFIRM
Hyperlink: https://www.incibe.es/en/incibe-cert/notices/aviso/meross-mss550x-missing-encryption-sensitive-data
Resource:
x_refsource_CONFIRM
▼Authorized Data Publishers (ADP)
1. CVE Program Container
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://www.incibe.es/en/incibe-cert/notices/aviso/meross-mss550x-missing-encryption-sensitive-data
x_refsource_CONFIRM
x_transferred
Hyperlink: https://www.incibe.es/en/incibe-cert/notices/aviso/meross-mss550x-missing-encryption-sensitive-data
Resource:
x_refsource_CONFIRM
x_transferred
2. CISA ADP Vulnrichment
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
Information is not available yet
▼National Vulnerability Database (NVD)
nvd.nist.gov
Source:cve-coordination@incibe.es
Published At:05 Nov, 2021 | 21:15
Updated At:20 Nov, 2023 | 14:15

Meross Smart Wi-Fi 2 Way Wall Switch (MSS550X), on its 3.1.3 version and before, creates an open Wi-Fi Access Point without the required security measures in its initial setup. This could allow a remote attacker to obtain the Wi-Fi SSID as well as the password configured by the user from Meross app via Http/JSON plain request.

CISA Catalog
Date AddedDue DateVulnerability NameRequired Action
N/A
Date Added: N/A
Due Date: N/A
Vulnerability Name: N/A
Required Action: N/A
Metrics
TypeVersionBase scoreBase severityVector
Primary3.16.5MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Secondary3.17.4HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N
Primary2.04.3MEDIUM
AV:N/AC:M/Au:N/C:P/I:N/A:N
Type: Primary
Version: 3.1
Base score: 6.5
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Type: Secondary
Version: 3.1
Base score: 7.4
Base severity: HIGH
Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N
Type: Primary
Version: 2.0
Base score: 4.3
Base severity: MEDIUM
Vector:
AV:N/AC:M/Au:N/C:P/I:N/A:N
CPE Matches
meross
meross
>>mss550x_firmware>>Versions up to 3.1.3(inclusive)
cpe:2.3:o:meross:mss550x_firmware:*:*:*:*:*:*:*:*
meross
meross
>>mss550x>>-
cpe:2.3:h:meross:mss550x:-:*:*:*:*:*:*:*
Weaknesses
CWE IDTypeSource
CWE-319Primarynvd@nist.gov
CWE-319Secondarycve-coordination@incibe.es
CWE ID: CWE-319
Type: Primary
Source: nvd@nist.gov
CWE ID: CWE-319
Type: Secondary
Source: cve-coordination@incibe.es
Evaluator Description
Evaluator Impact

Evaluator Solution

Vendor Statements
References
HyperlinkSourceResource
https://www.incibe.es/en/incibe-cert/notices/aviso/meross-mss550x-missing-encryption-sensitive-datacve-coordination@incibe.es
N/A
Hyperlink: https://www.incibe.es/en/incibe-cert/notices/aviso/meross-mss550x-missing-encryption-sensitive-data
Source: cve-coordination@incibe.es
Resource: N/A

Change History

0
Information is not available yet

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