{"id":"CVE-2016-4463","url":"https://www.cyber-defence.io/tools/cve/CVE-2016-4463","generatedAt":"2026-11-05T05:24:21.586Z","title":"Stack-based buffer overflow in Apache Xerces-C++ before 3.1.4 allows context-dependent attackers to cause a denial of service via a deeply nested DTD.","description":"Stack-based buffer overflow in Apache Xerces-C++ before 3.1.4 allows context-dependent attackers to cause a denial of service via a deeply nested DTD.","published":"2016-07-08T19:59:01.000Z","lastModified":"2026-06-17T00:47:36.000Z","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":["apache/xerces-c\\+\\+","debian/debian linux"],"epss":{"score":0.1425,"percentile":0.96605,"date":"2026-11-04","history":[{"date":"2026-09-21","score":0.11299,"percentile":0.95839},{"date":"2026-09-22","score":0.14138,"percentile":0.96406},{"date":"2026-10-12","score":0.1617,"percentile":0.96869},{"date":"2026-10-17","score":0.14138,"percentile":0.96541}]},"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 14.2%, higher than 97% of all known CVEs. Patch or mitigate before the next change window."},"changes":[],"references":[{"url":"http://lists.opensuse.org/opensuse-updates/2016-07/msg00053.html","source":"secalert@redhat.com"},{"url":"http://lists.opensuse.org/opensuse-updates/2016-09/msg00013.html","source":"secalert@redhat.com"},{"url":"http://packetstormsecurity.com/files/137714/Apache-Xerces-C-XML-Parser-Crash.html","source":"secalert@redhat.com"},{"url":"http://www.oracle.com/technetwork/security-advisory/cpujul2018-4258247.html","source":"secalert@redhat.com"},{"url":"http://www.securityfocus.com/archive/1/538784/100/0/threaded","source":"secalert@redhat.com"},{"url":"http://www.securityfocus.com/bid/91501","source":"secalert@redhat.com"},{"url":"http://www.securitytracker.com/id/1036211","source":"secalert@redhat.com"},{"url":"http://xerces.apache.org/xerces-c/secadv/CVE-2016-4463.txt","source":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2018:3335","source":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2018:3506","source":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2018:3514","source":"secalert@redhat.com"},{"url":"https://issues.apache.org/jira/browse/XERCESC-2069","source":"secalert@redhat.com"},{"url":"https://issues.apache.org/jira/secure/ReleaseNote.jspa?projectId=10510&version=12336069","source":"secalert@redhat.com"},{"url":"https://www.debian.org/security/2016/dsa-3610","source":"secalert@redhat.com"},{"url":"https://www.oracle.com/security-alerts/cpuapr2020.html","source":"secalert@redhat.com"},{"url":"http://lists.opensuse.org/opensuse-updates/2016-07/msg00053.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://lists.opensuse.org/opensuse-updates/2016-09/msg00013.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://packetstormsecurity.com/files/137714/Apache-Xerces-C-XML-Parser-Crash.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.oracle.com/technetwork/security-advisory/cpujul2018-4258247.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securityfocus.com/archive/1/538784/100/0/threaded","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securityfocus.com/bid/91501","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securitytracker.com/id/1036211","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://xerces.apache.org/xerces-c/secadv/CVE-2016-4463.txt","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://access.redhat.com/errata/RHSA-2018:3335","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://access.redhat.com/errata/RHSA-2018:3506","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://access.redhat.com/errata/RHSA-2018:3514","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://issues.apache.org/jira/browse/XERCESC-2069","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://issues.apache.org/jira/secure/ReleaseNote.jspa?projectId=10510&version=12336069","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.debian.org/security/2016/dsa-3610","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.oracle.com/security-alerts/cpuapr2020.html","source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2016-4463","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}