{"attribution":"This product uses data from the NVD API but is not endorsed or certified by the NVD.","cve":{"id":"CVE-2016-2563","sourceIdentifier":"cve@mitre.org","published":"2016-04-07T23:59:07.657","lastModified":"2026-06-17T00:44:18.253","vulnStatus":"Modified","cveTags":[],"descriptions":[{"lang":"en","value":"Stack-based buffer overflow in the SCP command-line utility in PuTTY before 0.67 and KiTTY 0.66.6.3 and earlier allows remote servers to cause a denial of service (stack memory corruption) or execute arbitrary code via a crafted SCP-SINK file-size response to an SCP download request."},{"lang":"es","value":"Desbordamiento de buffer basado en pila en la utilidad comando-línea de SCP en PuTTY en versiones anteriores a 0.67 y KiTTY 0.66.6.3 y versiones anteriores permite a servidores remotos causar una denegación de servicio (corrupción de memoria de pila) o ejecutar código arbitrario a través de una respuesta de tamño de archivo SCP-SINK a una petición de descarga SCP."}],"affected":[{"source":"cve@mitre.org","affectedData":[{"vendor":"n/a","product":"n/a","versions":[{"version":"n/a","status":"affected"}]}]}],"metrics":{"cvssMetricV30":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.0","vectorString":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","baseScore":9.8,"baseSeverity":"CRITICAL","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"},"exploitabilityScore":3.9,"impactScore":5.9}],"cvssMetricV2":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"2.0","vectorString":"AV:N/AC:L/Au:N/C:P/I:P/A:P","baseScore":7.5,"accessVector":"NETWORK","accessComplexity":"LOW","authentication":"NONE","confidentialityImpact":"PARTIAL","integrityImpact":"PARTIAL","availabilityImpact":"PARTIAL"},"baseSeverity":"HIGH","exploitabilityScore":10.0,"impactScore":6.4,"acInsufInfo":false,"obtainAllPrivilege":false,"obtainUserPrivilege":false,"obtainOtherPrivilege":false,"userInteractionRequired":false}]},"weaknesses":[{"source":"nvd@nist.gov","type":"Primary","description":[{"lang":"en","value":"CWE-119"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:9bis:kitty:*:*:*:*:*:*:*:*","versionEndIncluding":"0.66.6.3","matchCriteriaId":"479C8AD6-8701-4170-9065-1B4F96CC81F1"},{"vulnerable":true,"criteria":"cpe:2.3:a:simon_tatham:putty:*:*:*:*:*:*:*:*","versionEndIncluding":"0.66","matchCriteriaId":"090C55DB-A0E2-4281-8A96-C8CB7291F6D1"}]}]}],"references":[{"url":"http://lists.opensuse.org/opensuse-updates/2016-05/msg00131.html","source":"cve@mitre.org"},{"url":"http://seclists.org/fulldisclosure/2016/Mar/22","source":"cve@mitre.org"},{"url":"http://www.chiark.greenend.org.uk/~sgtatham/putty/wishlist/vuln-pscp-sink-sscanf.html","source":"cve@mitre.org","tags":["Patch"]},{"url":"http://www.securityfocus.com/bid/84296","source":"cve@mitre.org"},{"url":"http://www.securitytracker.com/id/1035257","source":"cve@mitre.org"},{"url":"https://github.com/tintinweb/pub/tree/master/pocs/cve-2016-2563","source":"cve@mitre.org","tags":["Vendor Advisory"]},{"url":"https://security.gentoo.org/glsa/201606-01","source":"cve@mitre.org"},{"url":"http://lists.opensuse.org/opensuse-updates/2016-05/msg00131.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://seclists.org/fulldisclosure/2016/Mar/22","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.chiark.greenend.org.uk/~sgtatham/putty/wishlist/vuln-pscp-sink-sscanf.html","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch"]},{"url":"http://www.securityfocus.com/bid/84296","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securitytracker.com/id/1035257","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://github.com/tintinweb/pub/tree/master/pocs/cve-2016-2563","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Vendor Advisory"]},{"url":"https://security.gentoo.org/glsa/201606-01","source":"af854a3a-2127-422b-91ae-364da2661108"}]}}