{"id":"CVE-2016-4447","url":"https://www.cyber-defence.io/tools/cve/CVE-2016-4447","generatedAt":"2026-11-05T05:27:54.265Z","title":"The xmlParseElementDecl function in parser.c in libxml2 before 2.9.4 allows context-dependent attackers to cause a denial of service (heap-based buffer underread and application crash) via a crafted file, involving xmlParseName.","description":"The xmlParseElementDecl function in parser.c in libxml2 before 2.9.4 allows context-dependent attackers to cause a denial of service (heap-based buffer underread and application crash) via a crafted file, involving xmlParseName.","published":"2016-06-09T16:59:06.000Z","lastModified":"2026-06-17T00:47:35.000Z","status":"Modified","sourceIdentifier":"secalert@redhat.com","cvss":{"version":"3.0","score":7.5,"severity":"HIGH","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},"cwe":["CWE-119"],"affected":["hp/icewall federation agent","canonical/ubuntu linux","debian/debian linux","oracle/vm server","apple/itunes","apple/iphone os","apple/mac os x","apple/tvos","apple/watchos","xmlsoft/libxml2","mcafee/web gateway"],"epss":{"score":0.1398,"percentile":0.96562,"date":"2026-11-04","history":[{"date":"2026-09-21","score":0.11141,"percentile":0.95804},{"date":"2026-09-22","score":0.1398,"percentile":0.96379}]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"urgent","text":"EPSS puts the probability of exploitation in the next 30 days at 14.0%, higher than 97% of all known CVEs. Patch or mitigate before the next change window."},"changes":[],"references":[{"url":"http://lists.apple.com/archives/security-announce/2016/Jul/msg00000.html","tags":["Mailing List","Third Party Advisory"],"source":"secalert@redhat.com"},{"url":"http://lists.apple.com/archives/security-announce/2016/Jul/msg00001.html","tags":["Mailing List","Third Party Advisory"],"source":"secalert@redhat.com"},{"url":"http://lists.apple.com/archives/security-announce/2016/Jul/msg00002.html","tags":["Mailing List","Third Party Advisory"],"source":"secalert@redhat.com"},{"url":"http://lists.apple.com/archives/security-announce/2016/Jul/msg00003.html","tags":["Mailing List","Not Applicable"],"source":"secalert@redhat.com"},{"url":"http://lists.apple.com/archives/security-announce/2016/Jul/msg00005.html","tags":["Mailing List","Third Party Advisory"],"source":"secalert@redhat.com"},{"url":"http://rhn.redhat.com/errata/RHSA-2016-2957.html","tags":["Third Party Advisory"],"source":"secalert@redhat.com"},{"url":"http://www.openwall.com/lists/oss-security/2016/05/25/2","tags":["Mailing List","Third Party Advisory"],"source":"secalert@redhat.com"},{"url":"http://www.oracle.com/technetwork/topics/security/bulletinjul2016-3090568.html","tags":["Third Party Advisory"],"source":"secalert@redhat.com"},{"url":"http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html","tags":["Third Party Advisory"],"source":"secalert@redhat.com"},{"url":"http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html","tags":["Third Party Advisory"],"source":"secalert@redhat.com"},{"url":"http://www.securityfocus.com/bid/90864","tags":["Third Party Advisory","VDB Entry"],"source":"secalert@redhat.com"},{"url":"http://www.securitytracker.com/id/1036348","tags":["Third Party Advisory","VDB Entry"],"source":"secalert@redhat.com"},{"url":"http://www.slackware.com/security/viewer.php?l=slackware-security&y=2016&m=slackware-security.404722","tags":["Exploit","Mailing List","Third Party Advisory"],"source":"secalert@redhat.com"},{"url":"http://www.ubuntu.com/usn/USN-2994-1","tags":["Third Party Advisory"],"source":"secalert@redhat.com"},{"url":"http://xmlsoft.org/news.html","tags":["Release Notes","Vendor Advisory"],"source":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2016:1292","tags":["Third Party Advisory"],"source":"secalert@redhat.com"},{"url":"https://git.gnome.org/browse/libxml2/commit/?id=00906759053986b8079985644172085f74331f83","tags":["Patch","Third Party Advisory"],"source":"secalert@redhat.com"},{"url":"https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05194709","tags":["Third Party Advisory"],"source":"secalert@redhat.com"},{"url":"https://kc.mcafee.com/corporate/index?page=content&id=SB10170","tags":["Patch","Third Party Advisory"],"source":"secalert@redhat.com"},{"url":"https://support.apple.com/HT206899","tags":["Third Party Advisory"],"source":"secalert@redhat.com"},{"url":"https://support.apple.com/HT206901","tags":["Third Party Advisory"],"source":"secalert@redhat.com"},{"url":"https://support.apple.com/HT206902","tags":["Third Party Advisory"],"source":"secalert@redhat.com"},{"url":"https://support.apple.com/HT206903","tags":["Third Party Advisory"],"source":"secalert@redhat.com"},{"url":"https://support.apple.com/HT206904","tags":["Third Party Advisory"],"source":"secalert@redhat.com"},{"url":"https://support.apple.com/HT206905","tags":["Third Party Advisory"],"source":"secalert@redhat.com"},{"url":"https://www.debian.org/security/2016/dsa-3593","tags":["Third Party Advisory"],"source":"secalert@redhat.com"},{"url":"https://www.tenable.com/security/tns-2016-18","tags":["Third Party Advisory"],"source":"secalert@redhat.com"},{"url":"http://lists.apple.com/archives/security-announce/2016/Jul/msg00000.html","tags":["Mailing List","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://lists.apple.com/archives/security-announce/2016/Jul/msg00001.html","tags":["Mailing List","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://lists.apple.com/archives/security-announce/2016/Jul/msg00002.html","tags":["Mailing List","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://lists.apple.com/archives/security-announce/2016/Jul/msg00003.html","tags":["Mailing List","Not Applicable"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://lists.apple.com/archives/security-announce/2016/Jul/msg00005.html","tags":["Mailing List","Third Party 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Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securitytracker.com/id/1036348","tags":["Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.slackware.com/security/viewer.php?l=slackware-security&y=2016&m=slackware-security.404722","tags":["Exploit","Mailing List","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.ubuntu.com/usn/USN-2994-1","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://xmlsoft.org/news.html","tags":["Release Notes","Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://access.redhat.com/errata/RHSA-2016:1292","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://git.gnome.org/browse/libxml2/commit/?id=00906759053986b8079985644172085f74331f83","tags":["Patch","Third Party 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