{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-05-01T15:17:55.518","vulnerabilities":[{"cve":{"id":"CVE-2025-23019","sourceIdentifier":"cve@mitre.org","published":"2025-01-14T20:15:32.577","lastModified":"2025-11-03T21:19:14.540","vulnStatus":"Modified","cveTags":[],"descriptions":[{"lang":"en","value":"IPv6-in-IPv4 tunneling (RFC 4213) allows an attacker to spoof and route traffic via an exposed network interface."},{"lang":"es","value":"La tunelización IPv6 en IPv4 (RFC 4213) permite a un atacante falsificar y enrutar el tráfico a través de una interfaz de red expuesta."}],"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}]},"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/rfc4213","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"}]}}]}