CVE-2026-9431
Stack-Based Buffer Overflow in Tenda F1202 Router
Publication date: 2026-05-25
Last updated on: 2026-05-25
Assigner: VulDB
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| tenda | f1202 | 1.2.0.20 |
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 F1202 device, specifically in the function fromPptpUserAdd within the file /goform/PptpUserAdd. It is caused by improper handling of the argument 'opttype', which leads to a stack-based buffer overflow.
An attacker can exploit this vulnerability remotely, and the exploit code is publicly available.
How can this vulnerability impact me? :
The vulnerability allows a remote attacker to cause a stack-based buffer overflow, which can lead to severe consequences such as executing arbitrary code, crashing the device, or gaining unauthorized access.
Given the high CVSS scores (up to 9.0 in v2.0), the impact includes complete compromise of confidentiality, integrity, and availability of the affected device.