CVE-2026-3678
Remote Stack-Based Buffer Overflow in Tenda FH451 WAN Settings
Publication date: 2026-03-07
Last updated on: 2026-03-09
Assigner: VulDB
Description
Description
CVSS Scores
EPSS Scores
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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
What immediate steps should I take to mitigate this vulnerability?
I don't know
How can this vulnerability impact me? :
Exploitation of this vulnerability can lead to a stack-based buffer overflow, which may allow an attacker to execute arbitrary code on the affected device remotely. This can compromise the device's integrity, confidentiality, and availability, potentially leading to unauthorized access, disruption of network services, or further attacks within the network.
How does this vulnerability affect compliance with common standards and regulations (like GDPR, HIPAA)?:
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How can this vulnerability be detected on my network or system? Can you suggest some commands?
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Can you explain this vulnerability to me?
This vulnerability exists in the Tenda FH451 device, specifically in the function sub_3C434 of the file /goform/AdvSetWan. It involves a stack-based buffer overflow caused by improper handling of the arguments wanmode or PPPOEPassword. An attacker can exploit this flaw remotely by manipulating these arguments.