CVE-2026-3677
Stack-Based Buffer Overflow in Tenda FH451 Remote Function
Publication date: 2026-03-07
Last updated on: 2026-03-09
Assigner: VulDB
Description
Description
CVSS Scores
EPSS Scores
| Probability: | |
| Percentile: |
Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| tenda | fh451_firmware | 1.0.0.9 |
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 FH451 device, specifically in version 1.0.0.9. It affects the function fromSetCfm located in the file /goform/setcfm. The issue arises due to improper handling of the arguments funcname and funcpara1, which leads to a stack-based buffer overflow. This type of vulnerability allows an attacker to 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. Additionally, the exploit code has been made public, increasing the risk of exploitation.
How can this vulnerability impact me? :
Exploitation of this vulnerability can have severe impacts including unauthorized remote code execution, denial of service, or complete compromise of the affected device. Since the vulnerability allows a stack-based buffer overflow, an attacker could potentially execute arbitrary code with the privileges of the affected process.
This could lead to loss of control over the device, interception or manipulation of network traffic, and disruption of network services. The remote nature of the attack increases the risk as it can be exploited without physical access.
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