CVE-2026-7470
Stack-Based Buffer Overflow in Tenda 4G300 Router
Publication date: 2026-04-30
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 | 4g300_firmware | 1.01.42_cn_tdc01 |
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 is a stack-based buffer overflow found in the Tenda 4G300 device, specifically in the function sub_427C3C of the file /goform/SafeMacFilter. It occurs due to improper handling or manipulation of the argument 'page', which allows an attacker to overwrite parts of the stack memory.
Because the vulnerability is remotely exploitable, an attacker can potentially execute arbitrary code or cause a denial of service on the affected device without physical access.
The exploit for this vulnerability has already been published, increasing the risk of attacks.
How can this vulnerability impact me? :
Exploitation of this vulnerability can lead to severe impacts including complete compromise of the affected device.
- Remote attackers can execute arbitrary code with elevated privileges.
- Confidentiality, integrity, and availability of the device and its data can be fully compromised.
- Potential denial of service conditions may be triggered, disrupting network connectivity.
Can you explain this vulnerability to me?
This vulnerability is a stack-based buffer overflow found in the Tenda 4G300 device, specifically in the function sub_427C3C of the file /goform/SafeMacFilter. It occurs due to improper handling or manipulation of the argument 'page'.
Because of this flaw, an attacker can remotely exploit the device by sending specially crafted input to cause the buffer overflow.
The exploit for this vulnerability has already been published, which increases the risk of it being used in attacks.
How can this vulnerability impact me? :
The vulnerability allows remote attackers to execute arbitrary code or cause a denial of service by exploiting the stack-based buffer overflow.
According to the CVSS scores, the impact is high on confidentiality, integrity, and availability, meaning sensitive data could be exposed or altered, and the device could be disrupted.
Since the exploit is publicly available, the risk of compromise is significant if the device is exposed to untrusted networks.