{"id":"CVE-2016-2114","url":"https://www.cyber-defence.io/tools/cve/CVE-2016-2114","generatedAt":"2026-10-27T18:46:19.779Z","title":"The SMB1 protocol implementation in Samba 4.x before 4.2.11, 4.3.x before 4.3.8, and 4.4.x before 4.4.2 does not recognize the \"server signing = mandatory\" setting, which allows man-in-the-middle attackers to spoof SMB servers by modifying the…","description":"The SMB1 protocol implementation in Samba 4.x before 4.2.11, 4.3.x before 4.3.8, and 4.4.x before 4.4.2 does not recognize the \"server signing = mandatory\" setting, which allows man-in-the-middle attackers to spoof SMB servers by modifying the client-server data stream.","published":"2016-04-25T00:59:05.000Z","lastModified":"2026-06-17T00:43:29.000Z","status":"Modified","sourceIdentifier":"secalert@redhat.com","cvss":{"version":"3.0","score":5.9,"severity":"MEDIUM","vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N"},"cwe":["CWE-254"],"affected":["samba/samba","canonical/ubuntu linux"],"epss":{"score":0.02677,"percentile":0.85699,"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 (2.68%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"http://badlock.org/","source":"secalert@redhat.com"},{"url":"http://lists.fedoraproject.org/pipermail/package-announce/2016-April/182185.html","source":"secalert@redhat.com"},{"url":"http://lists.fedoraproject.org/pipermail/package-announce/2016-April/182272.html","source":"secalert@redhat.com"},{"url":"http://lists.fedoraproject.org/pipermail/package-announce/2016-April/182288.html","source":"secalert@redhat.com"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00047.html","source":"secalert@redhat.com"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00048.html","source":"secalert@redhat.com"},{"url":"http://rhn.redhat.com/errata/RHSA-2016-0612.html","source":"secalert@redhat.com"},{"url":"http://rhn.redhat.com/errata/RHSA-2016-0614.html","source":"secalert@redhat.com"},{"url":"http://rhn.redhat.com/errata/RHSA-2016-0618.html","source":"secalert@redhat.com"},{"url":"http://rhn.redhat.com/errata/RHSA-2016-0620.html","source":"secalert@redhat.com"},{"url":"http://www.debian.org/security/2016/dsa-3548","source":"secalert@redhat.com"},{"url":"http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html","source":"secalert@redhat.com"},{"url":"http://www.securityfocus.com/bid/86011","source":"secalert@redhat.com"},{"url":"http://www.securitytracker.com/id/1035533","source":"secalert@redhat.com"},{"url":"http://www.slackware.com/security/viewer.php?l=slackware-security&y=2016&m=slackware-security.458012","source":"secalert@redhat.com"},{"url":"http://www.ubuntu.com/usn/USN-2950-1","source":"secalert@redhat.com"},{"url":"http://www.ubuntu.com/usn/USN-2950-2","source":"secalert@redhat.com"},{"url":"http://www.ubuntu.com/usn/USN-2950-3","source":"secalert@redhat.com"},{"url":"http://www.ubuntu.com/usn/USN-2950-4","source":"secalert@redhat.com"},{"url":"http://www.ubuntu.com/usn/USN-2950-5","source":"secalert@redhat.com"},{"url":"https://bto.bluecoat.com/security-advisory/sa122","source":"secalert@redhat.com"},{"url":"https://security.gentoo.org/glsa/201612-47","source":"secalert@redhat.com"},{"url":"https://www.samba.org/samba/history/samba-4.2.10.html","source":"secalert@redhat.com"},{"url":"https://www.samba.org/samba/latest_news.html#4.4.2","source":"secalert@redhat.com"},{"url":"https://www.samba.org/samba/security/CVE-2016-2114.html","tags":["Patch","Vendor Advisory"],"source":"secalert@redhat.com"},{"url":"http://badlock.org/","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://lists.fedoraproject.org/pipermail/package-announce/2016-April/182185.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://lists.fedoraproject.org/pipermail/package-announce/2016-April/182272.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://lists.fedoraproject.org/pipermail/package-announce/2016-April/182288.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00047.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00048.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://rhn.redhat.com/errata/RHSA-2016-0612.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://rhn.redhat.com/errata/RHSA-2016-0614.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://rhn.redhat.com/errata/RHSA-2016-0618.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://rhn.redhat.com/errata/RHSA-2016-0620.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.debian.org/security/2016/dsa-3548","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securityfocus.com/bid/86011","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securitytracker.com/id/1035533","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.slackware.com/security/viewer.php?l=slackware-security&y=2016&m=slackware-security.458012","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.ubuntu.com/usn/USN-2950-1","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.ubuntu.com/usn/USN-2950-2","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.ubuntu.com/usn/USN-2950-3","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.ubuntu.com/usn/USN-2950-4","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.ubuntu.com/usn/USN-2950-5","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://bto.bluecoat.com/security-advisory/sa122","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://security.gentoo.org/glsa/201612-47","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.samba.org/samba/history/samba-4.2.10.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.samba.org/samba/latest_news.html#4.4.2","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.samba.org/samba/security/CVE-2016-2114.html","tags":["Patch","Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2016-2114","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."}