{"attribution":"This product uses data from the NVD API but is not endorsed or certified by the NVD.","cve":{"id":"CVE-2025-23018","sourceIdentifier":"cve@mitre.org","published":"2025-01-14T20:15:32.440","lastModified":"2026-06-17T08:51:28.007","vulnStatus":"Modified","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."},{"lang":"es","value":"La tunelización de IPv4 en IPv6 e IPv6 en IPv6 (RFC 2473) no requiere la validación o verificación del origen de un paquete de red, lo que permite a un atacante falsificar y enrutar tráfico arbitrario a través de una interfaz de red expuesta. Este es un problema similar a CVE-2020-10136."}],"affected":[{"source":"cve@mitre.org","affectedData":[{"vendor":"IETF","product":"IPv6","defaultStatus":"unknown","versions":[{"version":"6","versionType":"custom","status":"affected"}]}]}],"metrics":{"cvssMetricV31":[{"source":"cve@mitre.org","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N","baseScore":5.4,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"HIGH","privilegesRequired":"NONE","userInteraction":"NONE","scope":"CHANGED","confidentialityImpact":"LOW","integrityImpact":"LOW","availabilityImpact":"NONE"},"exploitabilityScore":2.2,"impactScore":2.7},{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:L","baseScore":6.5,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"HIGH","privilegesRequired":"NONE","userInteraction":"NONE","scope":"CHANGED","confidentialityImpact":"LOW","integrityImpact":"LOW","availabilityImpact":"LOW"},"exploitabilityScore":2.2,"impactScore":3.7}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"timestamp":"2025-01-15T19:38:35.023118Z","id":"CVE-2025-23018","options":[{"exploitation":"none"},{"automatable":"no"},{"technicalImpact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}]},"weaknesses":[{"source":"cve@mitre.org","type":"Secondary","description":[{"lang":"en","value":"CWE-940"}]},{"source":"nvd@nist.gov","type":"Primary","description":[{"lang":"en","value":"NVD-CWE-Other"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:ietf:ipv6:-:*:*:*:*:*:*:*","matchCriteriaId":"9143AE03-F25A-4C4A-9037-DFBC9B4F5FB8"}]}]}],"references":[{"url":"https://datatracker.ietf.org/doc/html/rfc2473","source":"cve@mitre.org","tags":["Technical Description"]},{"url":"https://papers.mathyvanhoef.com/usenix2025-tunnels.pdf","source":"cve@mitre.org","tags":["Technical Description"]},{"url":"https://www.top10vpn.com/research/tunneling-protocol-vulnerability/","source":"cve@mitre.org","tags":["Technical Description"]},{"url":"https://www.kb.cert.org/vuls/id/199397","source":"af854a3a-2127-422b-91ae-364da2661108"}]}}