{"id":"CVE-2015-4620","url":"https://www.cyber-defence.io/tools/cve/CVE-2015-4620","generatedAt":"2026-10-27T17:44:32.266Z","title":"name.c in named in ISC BIND 9.7.x through 9.9.x before 9.9.7-P1 and 9.10.x before 9.10.2-P2, when configured as a recursive resolver with DNSSEC validation, allows remote attackers to cause a denial of service (REQUIRE assertion failure and daemon exit)…","description":"name.c in named in ISC BIND 9.7.x through 9.9.x before 9.9.7-P1 and 9.10.x before 9.10.2-P2, when configured as a recursive resolver with DNSSEC validation, allows remote attackers to cause a denial of service (REQUIRE assertion failure and daemon exit) by constructing crafted zone data and then making a query for a name in that zone.","published":"2015-07-08T14:59:05.000Z","lastModified":"2026-06-17T00:27:37.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"2.0","score":7.8,"severity":"HIGH","vector":"AV:N/AC:L/Au:N/C:N/I:N/A:C"},"cwe":["CWE-17"],"affected":["isc/bind"],"epss":{"score":0.38762,"percentile":0.98575,"date":"2026-10-26","history":[{"date":"2026-10-22","score":0.38762,"percentile":0.98585}]},"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 38.8%, higher than 99% of all known CVEs. Patch or mitigate before the next change window."},"changes":[],"references":[{"url":"http://lists.fedoraproject.org/pipermail/package-announce/2015-July/162040.html","source":"cve@mitre.org"},{"url":"http://lists.fedoraproject.org/pipermail/package-announce/2015-July/162286.html","source":"cve@mitre.org"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00013.html","source":"cve@mitre.org"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00050.html","source":"cve@mitre.org"},{"url":"http://lists.opensuse.org/opensuse-updates/2015-07/msg00038.html","source":"cve@mitre.org"},{"url":"http://marc.info/?l=bugtraq&m=143740940810833&w=2","source":"cve@mitre.org"},{"url":"http://rhn.redhat.com/errata/RHSA-2015-1443.html","source":"cve@mitre.org"},{"url":"http://rhn.redhat.com/errata/RHSA-2015-1471.html","source":"cve@mitre.org"},{"url":"http://www.debian.org/security/2015/dsa-3304","source":"cve@mitre.org"},{"url":"http://www.securityfocus.com/bid/75588","source":"cve@mitre.org"},{"url":"http://www.securitytracker.com/id/1032799","source":"cve@mitre.org"},{"url":"http://www.ubuntu.com/usn/USN-2669-1","source":"cve@mitre.org"},{"url":"https://kb.isc.org/article/AA-01267","tags":["Vendor Advisory"],"source":"cve@mitre.org"},{"url":"https://kb.isc.org/article/AA-01305","source":"cve@mitre.org"},{"url":"https://kb.isc.org/article/AA-01306","source":"cve@mitre.org"},{"url":"https://kb.isc.org/article/AA-01307","source":"cve@mitre.org"},{"url":"https://kb.isc.org/article/AA-01438","source":"cve@mitre.org"},{"url":"https://kb.juniper.net/JSA10783","source":"cve@mitre.org"},{"url":"https://kc.mcafee.com/corporate/index?page=content&id=SB10124","source":"cve@mitre.org"},{"url":"https://security.gentoo.org/glsa/201510-01","source":"cve@mitre.org"},{"url":"https://security.netapp.com/advisory/ntap-20190903-0003/","source":"cve@mitre.org"},{"url":"http://lists.fedoraproject.org/pipermail/package-announce/2015-July/162040.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://lists.fedoraproject.org/pipermail/package-announce/2015-July/162286.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00013.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00050.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://lists.opensuse.org/opensuse-updates/2015-07/msg00038.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://marc.info/?l=bugtraq&m=143740940810833&w=2","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://rhn.redhat.com/errata/RHSA-2015-1443.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://rhn.redhat.com/errata/RHSA-2015-1471.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.debian.org/security/2015/dsa-3304","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securityfocus.com/bid/75588","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securitytracker.com/id/1032799","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.ubuntu.com/usn/USN-2669-1","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://kb.isc.org/article/AA-01267","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://kb.isc.org/article/AA-01305","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://kb.isc.org/article/AA-01306","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://kb.isc.org/article/AA-01307","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://kb.isc.org/article/AA-01438","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://kb.juniper.net/JSA10783","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://kc.mcafee.com/corporate/index?page=content&id=SB10124","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://security.gentoo.org/glsa/201510-01","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://security.netapp.com/advisory/ntap-20190903-0003/","source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2015-4620","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."}