{"id":"CVE-2018-16852","url":"https://www.cyber-defence.io/tools/cve/CVE-2018-16852","generatedAt":"2026-10-29T01:53:44.859Z","title":"Samba from version 4.9.0 and before version 4.9.3 is vulnerable to a NULL pointer de-reference.","description":"Samba from version 4.9.0 and before version 4.9.3 is vulnerable to a NULL pointer de-reference. During the processing of an DNS zone in the DNS management DCE/RPC server, the internal DNS server or the Samba DLZ plugin for BIND9, if the DSPROPERTY_ZONE_MASTER_SERVERS property or DSPROPERTY_ZONE_SCAVENGING_SERVERS property is set, the server will follow a NULL pointer and terminate. There is no further vulnerability associated with this issue, merely a denial of service.","published":"2018-11-28T14:29:00.000Z","lastModified":"2026-06-17T01:44:55.000Z","status":"Modified","sourceIdentifier":"secalert@redhat.com","cvss":{"version":"3.0","score":4.4,"severity":"MEDIUM","vector":"CVSS:3.0/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H"},"cwe":["CWE-476"],"affected":["samba/samba"],"epss":{"score":0.02227,"percentile":0.8264,"date":"2026-10-27","history":[{"date":"2026-09-21","score":0.03246,"percentile":0.87765},{"date":"2026-09-22","score":0.02227,"percentile":0.81975}]},"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 (2.23%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"http://www.securityfocus.com/bid/106024","tags":["Third Party Advisory","VDB Entry"],"source":"secalert@redhat.com"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16852","tags":["Issue Tracking","Third Party Advisory"],"source":"secalert@redhat.com"},{"url":"https://security.gentoo.org/glsa/202003-52","source":"secalert@redhat.com"},{"url":"https://security.netapp.com/advisory/ntap-20181127-0001/","tags":["Third Party Advisory"],"source":"secalert@redhat.com"},{"url":"https://www.samba.org/samba/security/CVE-2018-16852.html","tags":["Patch","Vendor Advisory"],"source":"secalert@redhat.com"},{"url":"http://www.securityfocus.com/bid/106024","tags":["Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16852","tags":["Issue Tracking","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://security.gentoo.org/glsa/202003-52","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://security.netapp.com/advisory/ntap-20181127-0001/","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.samba.org/samba/security/CVE-2018-16852.html","tags":["Patch","Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2018-16852","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."}