CVE-2026-7719
Buffer Overflow in Totolink WA300 Firmware via POST Request
Publication date: 2026-05-04
Last updated on: 2026-05-04
Assigner: VulDB
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| totolink | wa300 | 5.2cu.7112_b20190227 |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| 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. |
| 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. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability is a security flaw found in the Totolink WA300 device, specifically in the function loginauth within the file /cgi-bin/cstecgi.cgi, which handles POST requests. The flaw arises from improper handling of the http_host argument, leading to a buffer overflow condition. This means that an attacker can send specially crafted data remotely to overflow the buffer, potentially causing unexpected behavior or allowing execution of malicious code.
How can this vulnerability impact me? :
The impact of this vulnerability is severe. Because it allows remote exploitation without any authentication or user interaction, an attacker can potentially execute arbitrary code on the affected device. This can lead to full compromise of the device, including unauthorized access, disruption of services, or use of the device as a foothold for further attacks.