CVE-2026-4226
Remote Stack-Based Buffer Overflow in LB-LINK BL-WR9000 Firmware
Publication date: 2026-03-16
Last updated on: 2026-03-20
Assigner: VulDB
Description
Description
CVSS Scores
EPSS Scores
| Probability: | |
| Percentile: |
Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| lb-link | bl-wr9000_firmware | 2.4.9 |
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-787 | The product writes data past the end, or before the beginning, of the intended buffer. |
| 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 LB-LINK BL-WR9000 device, specifically in the function sub_44E8D0 of the file /goform/get_virtual_cfg. An attacker can remotely manipulate this function to cause the overflow, potentially leading to arbitrary code execution or system compromise.
How can this vulnerability impact me? :
Exploitation of this vulnerability can allow a remote attacker to execute arbitrary code on the affected device, potentially leading to full system compromise. This can result in unauthorized access, disruption of services, or further attacks within the network.
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