CVE-2026-4905
Stack-Based Buffer Overflow in Tenda AC5 WifiWpsOOB Remote Exploit
Publication date: 2026-03-27
Last updated on: 2026-03-31
Assigner: VulDB
Description
Description
CVSS Scores
EPSS Scores
| Probability: | |
| Percentile: |
Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| tenda | ac5_firmware | 15.03.06.47 |
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-787 | The product writes data past the end, or before the beginning, of the intended buffer. |
| 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 AC5 router, specifically in the function formWifiWpsOOB within the POST Request Handler component. It is caused by improper handling of the argument 'index', which leads to a stack-based buffer overflow. This means that an attacker can send specially crafted requests to the device to overwrite parts of the memory, potentially allowing remote code execution.
The vulnerability can be exploited remotely without user interaction, and the exploit code has already been made public.
How can this vulnerability impact me? :
Exploitation of this vulnerability can allow an attacker to execute arbitrary code on the affected device remotely. This can lead to unauthorized control over the router, disruption of network services, interception or manipulation of network traffic, and potentially further compromise of connected devices.