{"id":"CVE-2016-9963","url":"https://www.cyber-defence.io/tools/cve/CVE-2016-9963","generatedAt":"2026-10-28T19:02:53.231Z","title":"Exim before 4.87.1 might allow remote attackers to obtain the private DKIM signing key via vectors related to log files and bounce messages.","description":"Exim before 4.87.1 might allow remote attackers to obtain the private DKIM signing key via vectors related to log files and bounce messages.","published":"2017-02-01T15:59:00.000Z","lastModified":"2026-06-17T00:56:51.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"3.0","score":5.9,"severity":"MEDIUM","vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N"},"cwe":["CWE-320"],"affected":["exim/exim","canonical/ubuntu linux","debian/debian linux"],"epss":{"score":0.03098,"percentile":0.87677,"date":"2026-10-27","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 (3.10%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"http://www.debian.org/security/2016/dsa-3747","tags":["Third Party Advisory"],"source":"cve@mitre.org"},{"url":"http://www.exim.org/static/doc/CVE-2016-9963.txt","tags":["Mitigation","Vendor Advisory"],"source":"cve@mitre.org"},{"url":"http://www.securityfocus.com/bid/94947","tags":["Third Party Advisory","VDB Entry"],"source":"cve@mitre.org"},{"url":"http://www.securitytracker.com/id/1037484","tags":["Third Party Advisory","VDB Entry"],"source":"cve@mitre.org"},{"url":"http://www.ubuntu.com/usn/USN-3164-1","tags":["Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://bugs.exim.org/show_bug.cgi?id=1996","tags":["Issue Tracking","Mitigation","Vendor Advisory"],"source":"cve@mitre.org"},{"url":"http://www.debian.org/security/2016/dsa-3747","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.exim.org/static/doc/CVE-2016-9963.txt","tags":["Mitigation","Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securityfocus.com/bid/94947","tags":["Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securitytracker.com/id/1037484","tags":["Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.ubuntu.com/usn/USN-3164-1","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://bugs.exim.org/show_bug.cgi?id=1996","tags":["Issue Tracking","Mitigation","Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2016-9963","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."}