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{"cveTags": [], "descriptions": [{"lang": "en", "value": "IPv4-in-IPv6 and IPv6-in-IPv6 tunneling (RFC 2473) do not require the validation or verification of the source of a network packet, allowing an attacker to spoof and route arbitrary traffic via an exposed network interface. This is a similar issue to CVE-2020-10136."}], "id": "CVE-2025-23018", "lastModified": "2025-01-14T20:15:32.440", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 5.4, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 2.2, "impactScore": 2.7, "source": "cve@mitre.org", "type": "Secondary"}]}, "published": "2025-01-14T20:15:32.440", "references": [{"source": "cve@mitre.org", "url": "https://datatracker.ietf.org/doc/html/rfc2473"}, {"source": "cve@mitre.org", "url": "https://papers.mathyvanhoef.com/usenix2025-tunnels.pdf"}, {"source": "cve@mitre.org", "url": "https://www.top10vpn.com/research/tunneling-protocol-vulnerability/"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-940"}], "source": "cve@mitre.org", "type": "Secondary"}]}

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