CVE-2026-24114
Buffer Overflow in Tenda W20E Due to pPortMapIndex Validation Failure
Publication date: 2026-03-02
Last updated on: 2026-03-03
Assigner: MITRE
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| tenda | w20e_firmware | 15.11.0.6 |
Helpful Resources
Exploitability
| 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. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
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.
How can this vulnerability impact me? :
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.
How does this vulnerability affect compliance with common standards and regulations (like GDPR, HIPAA)?:
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How can this vulnerability be detected on my network or system? Can you suggest some commands?
I don't know
What immediate steps should I take to mitigate this vulnerability?
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