CVE-2026-6135
Stack-Based Buffer Overflow in Tenda F451 /goform/SetIpBind
Publication date: 2026-04-13
Last updated on: 2026-04-30
Assigner: VulDB
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| tenda | f451_firmware | 1.0.0.7 |
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?
CVE-2026-6135 is a stack-based buffer overflow vulnerability found in the fromSetIpBind function of the Tenda F451 firmware version 1.0.0.7_cn_svn7958. The vulnerability occurs because the function processes a user-supplied parameter named "page" without proper bounds checking before passing it to the sprintf function. This allows an attacker to send a specially crafted HTTP POST request with an oversized "page" parameter to the /goform/SetIpBind endpoint, causing a buffer overflow.
Exploiting this vulnerability can lead to denial of service (DoS) or potentially remote code execution on the affected device.
How does this vulnerability affect compliance with common standards and regulations (like GDPR, HIPAA)?:
The provided information does not specify how the vulnerability CVE-2026-6135 impacts compliance with common standards and regulations such as GDPR or HIPAA.
How can this vulnerability impact me? :
This vulnerability can impact you by allowing an attacker to remotely execute arbitrary code or cause a denial of service on your Tenda F451 device. This could lead to unauthorized control over the device, disruption of network services, or compromise of the device's security.
How can this vulnerability be detected on my network or system? Can you suggest some commands?
This vulnerability can be detected by sending a specially crafted HTTP POST request to the endpoint "/goform/SetIpBind" with an oversized "page" parameter.
A proof of concept involves sending 2048 bytes of the character 'a' in the "page" parameter to trigger the stack-based buffer overflow.
You can use a command like the following with curl to test for the vulnerability:
- curl -X POST http://[target-ip]/goform/SetIpBind -d "page=$(python3 -c 'print("a"*2048)')"
What immediate steps should I take to mitigate this vulnerability?
To mitigate the vulnerability in Tenda F451 1.0.0.7_cn_svn7958 related to the fromSetIpBind function, immediate steps include restricting access to the vulnerable endpoint "/goform/SetIpBind" to trusted users only.
Additionally, monitoring and filtering HTTP POST requests to detect and block unusually large or malformed "page" parameters can help prevent exploitation.
Applying any available firmware updates or patches from the vendor is recommended once they are released.
Until a patch is available, consider disabling or limiting remote access to the device to reduce exposure.