CVE-2026-3166
Remote Buffer Overflow in Tenda F453 httpd RouteStatic Function
Publication date: 2026-02-25
Last updated on: 2026-02-25
Assigner: VulDB
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| tenda | f453_firmware | 1.0.0.3 |
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. |
| CWE-119 | The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data. |
Attack-Flow Graph
AI Powered Q&A
What immediate steps should I take to mitigate this vulnerability?
The recommended immediate mitigation step is to replace the affected product or update the firmware to a version that is not vulnerable, as no known mitigations or countermeasures have been published.
Can you explain this vulnerability to me?
[{'type': 'paragraph', 'content': 'CVE-2026-3166 is a critical buffer overflow vulnerability found in the Tenda F453 router firmware version 1.0.0.3. It occurs in the function fromRouteStatic within the /goform/RouteStatic endpoint of the httpd component. The vulnerability arises when the "page" argument is manipulated with crafted input that is larger than expected, causing the program to copy data from an input buffer to an output buffer without verifying that the input size fits the output buffer. This leads to a buffer overflow condition.'}, {'type': 'paragraph', 'content': 'The attack can be launched remotely without requiring local or physical access, and an exploit is publicly available. This vulnerability is related to common buffer overflow weaknesses classified under CWE-120 and CWE-119.'}] [1, 2]
How can this vulnerability impact me? :
Exploitation of this vulnerability can compromise the confidentiality, integrity, and availability of the affected Tenda F453 router device. Because it is a buffer overflow, an attacker could potentially execute arbitrary code remotely, leading to unauthorized control over the device.
This could result in disruption of network services, interception or manipulation of network traffic, or the device being used as a foothold for further attacks within the network.
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?
There are no specific detection commands or methods provided in the available resources for identifying this vulnerability on your network or system.