CVE-2026-4489
Remote Stack-Based Buffer Overflow in Tenda A18 Pro WiFi Setting
Publication date: 2026-03-20
Last updated on: 2026-03-20
Assigner: VulDB
Description
Description
CVSS Scores
EPSS Scores
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| Percentile: |
Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| tenda | a18_pro | 02.03.02.28 |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| 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. |
| CWE-121 | A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function). |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability exists in the Tenda A18 Pro router, specifically in the function form_fast_setting_wifi_set located in the file /goform/fast_setting_wifi_set.
It is a stack-based buffer overflow vulnerability, which means that an attacker can send specially crafted input to this function to overwrite parts of the memory stack.
This overflow can be triggered remotely, allowing an attacker to exploit the vulnerability without physical access to the device.
The exploit for this vulnerability is publicly available.
How can this vulnerability impact me? :
Exploitation of this stack-based buffer overflow vulnerability can lead to severe impacts including unauthorized code execution on the affected device.
An attacker could potentially gain control over the router, disrupt network services, or use the device as a foothold to launch further attacks within the network.
Given the high CVSS scores (up to 9.0 in v2.0), the vulnerability poses a critical risk to the confidentiality, integrity, and availability of the device and connected systems.
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