{"id":"CVE-2012-5671","url":"https://www.cyber-defence.io/tools/cve/CVE-2012-5671","generatedAt":"2026-10-27T18:46:16.711Z","title":"Heap-based buffer overflow in the dkim_exim_query_dns_txt function in dkim.c in Exim 4.70 through 4.80, when DKIM support is enabled and acl_smtp_connect and acl_smtp_rcpt are not set to \"warn control = dkim_disable_verify,\" allows remote attackers to…","description":"Heap-based buffer overflow in the dkim_exim_query_dns_txt function in dkim.c in Exim 4.70 through 4.80, when DKIM support is enabled and acl_smtp_connect and acl_smtp_rcpt are not set to \"warn control = dkim_disable_verify,\" allows remote attackers to execute arbitrary code via an email from a malicious DNS server.","published":"2012-10-31T16:55:07.000Z","lastModified":"2026-06-16T23:47:14.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"2.0","score":6.8,"severity":"MEDIUM","vector":"AV:N/AC:M/Au:N/C:P/I:P/A:P"},"cwe":["CWE-119"],"affected":["exim/exim"],"epss":{"score":0.08382,"percentile":0.94936,"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":"low","text":"Lower severity and a low EPSS score (8.38%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"http://lists.fedoraproject.org/pipermail/package-announce/2012-November/091664.html","source":"cve@mitre.org"},{"url":"http://lists.fedoraproject.org/pipermail/package-announce/2012-October/090900.html","source":"cve@mitre.org"},{"url":"http://lists.fedoraproject.org/pipermail/package-announce/2012-October/090963.html","source":"cve@mitre.org"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2012-10/msg00018.html","source":"cve@mitre.org"},{"url":"http://osvdb.org/86616","source":"cve@mitre.org"},{"url":"http://secunia.com/advisories/51098","tags":["Vendor Advisory"],"source":"cve@mitre.org"},{"url":"http://secunia.com/advisories/51115","source":"cve@mitre.org"},{"url":"http://secunia.com/advisories/51153","source":"cve@mitre.org"},{"url":"http://secunia.com/advisories/51155","source":"cve@mitre.org"},{"url":"http://www.debian.org/security/2012/dsa-2566","source":"cve@mitre.org"},{"url":"http://www.openwall.com/lists/oss-security/2012/10/26/5","source":"cve@mitre.org"},{"url":"http://www.securityfocus.com/bid/56285","source":"cve@mitre.org"},{"url":"http://www.ubuntu.com/usn/USN-1618-1","source":"cve@mitre.org"},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/79615","source":"cve@mitre.org"},{"url":"https://lists.exim.org/lurker/message/20121026.080330.74b9147b.en.html","source":"cve@mitre.org"},{"url":"http://lists.fedoraproject.org/pipermail/package-announce/2012-November/091664.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://lists.fedoraproject.org/pipermail/package-announce/2012-October/090900.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://lists.fedoraproject.org/pipermail/package-announce/2012-October/090963.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2012-10/msg00018.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://osvdb.org/86616","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://secunia.com/advisories/51098","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://secunia.com/advisories/51115","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://secunia.com/advisories/51153","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://secunia.com/advisories/51155","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.debian.org/security/2012/dsa-2566","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.openwall.com/lists/oss-security/2012/10/26/5","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securityfocus.com/bid/56285","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.ubuntu.com/usn/USN-1618-1","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/79615","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.exim.org/lurker/message/20121026.080330.74b9147b.en.html","source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2012-5671","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."}