CVE-2026-8775
Buffer Overflow in Edimax BR-6428NS Firmware via L2TPUserName
Publication date: 2026-05-18
Last updated on: 2026-05-18
Assigner: VulDB
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| edimax | br-6428ns | 1.10 |
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-120 | The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability is a buffer overflow flaw found in the Edimax BR-6428NS device, specifically in the function formL2TPSetup within the POST Request Handler component. The issue arises from improper handling of the L2TPUserName argument, which can be manipulated to cause a buffer overflow.
An attacker can exploit this vulnerability remotely, meaning they do not need physical access to the device to initiate the attack. The exploit code has been published, increasing the risk of exploitation.
How can this vulnerability impact me? :
Exploitation of this buffer overflow vulnerability can lead to severe impacts including unauthorized control over the affected device. Given the high CVSS scores, the vulnerability can result in complete compromise of confidentiality, integrity, and availability of the device.
- Remote attackers may execute arbitrary code.
- Attackers can disrupt device operations or cause denial of service.
- Sensitive information on the device may be exposed or altered.