{"id":"CVE-2009-4009","url":"https://www.cyber-defence.io/tools/cve/CVE-2009-4009","generatedAt":"2026-10-27T20:41:53.102Z","title":"Buffer overflow in PowerDNS Recursor before 3.1.7.2 allows remote attackers to cause a denial of service (daemon crash) or possibly execute arbitrary code via crafted packets.","description":"Buffer overflow in PowerDNS Recursor before 3.1.7.2 allows remote attackers to cause a denial of service (daemon crash) or possibly execute arbitrary code via crafted packets.","published":"2010-01-08T17:30:02.000Z","lastModified":"2026-06-16T23:12:49.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"2.0","score":10,"severity":"HIGH","vector":"AV:N/AC:L/Au:N/C:C/I:C/A:C"},"cwe":["CWE-119"],"affected":["powerdns/recursor"],"epss":{"score":0.17572,"percentile":0.97121,"date":"2026-10-26","history":[]},"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 17.6%, higher than 97% of all known CVEs. Patch or mitigate before the next change window."},"changes":[],"references":[{"url":"http://doc.powerdns.com/powerdns-advisory-2010-01.html","source":"cve@mitre.org"},{"url":"http://secunia.com/advisories/38004","source":"cve@mitre.org"},{"url":"http://secunia.com/advisories/38068","tags":["Vendor Advisory"],"source":"cve@mitre.org"},{"url":"http://securitytracker.com/id?1023403","source":"cve@mitre.org"},{"url":"http://www.securityfocus.com/archive/1/508743/100/0/threaded","source":"cve@mitre.org"},{"url":"http://www.securityfocus.com/bid/37650","tags":["Patch"],"source":"cve@mitre.org"},{"url":"http://www.vupen.com/english/advisories/2010/0054","tags":["Vendor Advisory"],"source":"cve@mitre.org"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=552285","source":"cve@mitre.org"},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/55438","source":"cve@mitre.org"},{"url":"https://www.redhat.com/archives/fedora-package-announce/2010-January/msg00217.html","source":"cve@mitre.org"},{"url":"https://www.redhat.com/archives/fedora-package-announce/2010-January/msg00228.html","source":"cve@mitre.org"},{"url":"http://doc.powerdns.com/powerdns-advisory-2010-01.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://secunia.com/advisories/38004","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://secunia.com/advisories/38068","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://securitytracker.com/id?1023403","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securityfocus.com/archive/1/508743/100/0/threaded","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securityfocus.com/bid/37650","tags":["Patch"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.vupen.com/english/advisories/2010/0054","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=552285","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/55438","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.redhat.com/archives/fedora-package-announce/2010-January/msg00217.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.redhat.com/archives/fedora-package-announce/2010-January/msg00228.html","source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2009-4009","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."}