CVE-2026-24114
Received Received - Intake
Buffer Overflow in Tenda W20E Due to pPortMapIndex Validation Failure

Publication date: 2026-03-02

Last updated on: 2026-03-03

Assigner: MITRE

Description
An issue was discovered in Tenda W20E V4.0br_V15.11.0.6. Failure to validate `pPortMapIndex` may lead to buffer overflows when using `strcpy`.
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Meta Information
Published
2026-03-02
Last Modified
2026-03-03
Generated
2026-06-16
AI Q&A
2026-03-02
EPSS Evaluated
2026-06-15
NVD
CVE-2026-24114
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
tenda w20e_firmware 15.11.0.6
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Exploitability
CWE
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KEV
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CWE ID Description
CWE-120 The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer.
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Executive Summary

This vulnerability exists in the Tenda W20E device, specifically version V4.0br_V15.11.0.6. It is caused by a failure to properly validate the parameter `pPortMapIndex` before using it in the `strcpy` function. Because `strcpy` does not check the length of the input, this can lead to a buffer overflow.

Impact Analysis

The buffer overflow caused by improper validation of `pPortMapIndex` can potentially allow an attacker to overwrite memory, which may lead to unexpected behavior such as crashes, denial of service, or even execution of arbitrary code on the affected device.

Compliance Impact

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