{"id":"CVE-2016-2563","details":"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.","modified":"2026-04-16T06:23:43.660893046Z","published":"2016-04-07T23:59:07.657Z","references":[{"type":"WEB","url":"http://seclists.org/fulldisclosure/2016/Mar/22"},{"type":"WEB","url":"http://www.securityfocus.com/bid/84296"},{"type":"WEB","url":"http://www.securitytracker.com/id/1035257"},{"type":"WEB","url":"http://lists.opensuse.org/opensuse-updates/2016-05/msg00131.html"},{"type":"ADVISORY","url":"https://github.com/tintinweb/pub/tree/master/pocs/cve-2016-2563"},{"type":"ADVISORY","url":"https://security.gentoo.org/glsa/201606-01"},{"type":"FIX","url":"http://www.chiark.greenend.org.uk/~sgtatham/putty/wishlist/vuln-pscp-sink-sscanf.html"}],"affected":[{"database_specific":{"unresolved_ranges":[{"events":[{"introduced":"0"},{"last_affected":"0.66.6.3"}]},{"events":[{"introduced":"0"},{"last_affected":"0.66"}]},{"events":[{"introduced":"0"},{"fixed":"0.67"}]}],"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2016-2563.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"}]}