CVE-2026-24109
Buffer Overflow in Tenda W20E via Unvalidated picName Input
Publication date: 2026-03-02
Last updated on: 2026-03-05
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 running version 4.0br_V15.11.0.6. It occurs because an attacker can control the value of a variable named `picName`. This value is then used in a function called `sprintf` without proper validation of the variable's size. As a result, this can cause a buffer overflow, which means more data is written to a buffer than it can hold, potentially leading to unexpected behavior or exploitation.
How can this vulnerability impact me? :
The buffer overflow vulnerability can allow attackers to execute arbitrary code, crash the device, or cause it to behave unpredictably. This could lead to unauthorized access, denial of service, or compromise of the device's functionality.
How does this vulnerability affect compliance with common standards and regulations (like GDPR, HIPAA)?:
I don't know
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?
I don't know