CVE-2026-4975
Stack-Based Buffer Overflow in Tenda AC15 POST Handler
Publication date: 2026-03-27
Last updated on: 2026-04-03
Assigner: VulDB
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| tenda | ac15_firmware | 15.03.05.19_multi |
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 AC15 router, specifically in the function formSetCfm within the /goform/setcfm file, which handles POST requests.
An attacker can manipulate the argument funcpara1 to cause a stack-based buffer overflow, which means they can overwrite parts of the memory stack, potentially leading to arbitrary code execution or system crashes.
The attack can be performed remotely, meaning an attacker does not need physical access to the device to exploit this vulnerability.
The exploit has been publicly disclosed, increasing the risk of it being used in attacks.
How can this vulnerability impact me? :
Exploitation of this vulnerability can lead to severe impacts including unauthorized remote code execution, allowing attackers to take control of the affected device.
This can result in disruption of network services, interception or manipulation of network traffic, and potential use of the device as a foothold for further attacks within a network.
Because the vulnerability allows remote exploitation without user interaction, it poses a high risk to the security and availability of the device.