CVE-2022-40855 - Vulnerability Details - OpenCVE

Description

Tenda W20E router V15.11.0.6 contains a stack overflow in the function formSetPortMapping with post request 'goform/setPortMapping/'. This vulnerability allows attackers to cause a Denial of Service (DoS) or Remote Code Execution (RCE) via the portMappingServer, portMappingProtocol, portMappingWan, porMappingtInternal, and portMappingExternal parameters.

Published: 2022-09-23

Score: 9.8 Critical

EPSS: 3.1% Low

KEV: No

Impact:

Action:

Analysis

Analysis and contextual insights are available on OpenCVE Cloud.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

n/a

n/a

affected

Version	Status	Constraints
`n/a`	affected	—

Configuration 1 [-]

AND

cpe:2.3:o:tenda:w20e_firmware:15.11.0.6:*:*:*:*:*:*:*

cpe:2.3:h:tenda:w20e:-:*:*:*:*:*:*:*

No data.

No data available yet.

Remediation

No vendor fix or workaround currently provided.

Additional remediation guidance may be available on OpenCVE Cloud.

Tracking

Sign in to view the affected projects.

Advisories

No advisories yet.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.03069.

Exploitation poc

Automatable yes

Technical Impact total

References

Link	Providers
https://github.com/CPSeek/Router-vuls/blob/main/Tenda/W20E/formSetPortMapping.md

History

Thu, 22 May 2025 21:15:00 +0000

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}`

Subscriptions

Tenda W20e W20e Firmware

MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2022-09-23T14:29:36.000Z

Updated: 2025-05-22T20:01:35.441Z

Reserved: 2022-09-19T00:00:00.000Z

Link: CVE-2022-40855

Vulnrichment

Updated: 2024-08-03T12:28:42.934Z

NVD

Status : Modified

Published: 2022-09-23T15:15:14.473

Modified: 2025-05-22T20:15:25.877

Link: CVE-2022-40855

Redhat

No data.

OpenCVE Enrichment

No data.

Weaknesses

CWE-787

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