{"id":"CVE-2018-20506","url":"https://www.cyber-defence.io/tools/cve/CVE-2018-20506","generatedAt":"2026-10-28T20:27:48.824Z","title":"SQLite before 3.25.3, when the FTS3 extension is enabled, encounters an integer overflow (and resultant buffer overflow) for FTS3 queries in a \"merge\" operation that occurs after crafted changes to FTS3 shadow tables, allowing remote attackers to…","description":"SQLite before 3.25.3, when the FTS3 extension is enabled, encounters an integer overflow (and resultant buffer overflow) for FTS3 queries in a \"merge\" operation that occurs after crafted changes to FTS3 shadow tables, allowing remote attackers to execute arbitrary code by leveraging the ability to run arbitrary SQL statements (such as in certain WebSQL use cases). This is a different vulnerability than CVE-2018-20346.","published":"2019-04-03T18:29:01.000Z","lastModified":"2026-06-17T01:53:00.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"3.0","score":8.1,"severity":"HIGH","vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H"},"cwe":["CWE-190"],"affected":["sqlite/sqlite","apple/iphone os","apple/mac os x","apple/tvos","apple/watchos","apple/icloud","apple/itunes","opensuse/leap"],"epss":{"score":0.07504,"percentile":0.94458,"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":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (7.50%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00070.html","tags":["Mailing List","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"http://seclists.org/fulldisclosure/2019/Jan/62","tags":["Mailing List","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"http://seclists.org/fulldisclosure/2019/Jan/64","tags":["Mailing List","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"http://seclists.org/fulldisclosure/2019/Jan/66","tags":["Mailing List","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"http://seclists.org/fulldisclosure/2019/Jan/67","tags":["Mailing List","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"http://seclists.org/fulldisclosure/2019/Jan/68","tags":["Mailing List","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"http://seclists.org/fulldisclosure/2019/Jan/69","tags":["Mailing List","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"http://www.securityfocus.com/bid/106698","tags":["Third Party Advisory","VDB Entry"],"source":"cve@mitre.org"},{"url":"https://kc.mcafee.com/corporate/index?page=content&id=SB10365","source":"cve@mitre.org"},{"url":"https://lists.debian.org/debian-lts-announce/2020/08/msg00037.html","source":"cve@mitre.org"},{"url":"https://seclists.org/bugtraq/2019/Jan/28","tags":["Mailing List","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://seclists.org/bugtraq/2019/Jan/29","tags":["Mailing List","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://seclists.org/bugtraq/2019/Jan/31","tags":["Mailing List","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://seclists.org/bugtraq/2019/Jan/32","tags":["Mailing List","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://seclists.org/bugtraq/2019/Jan/33","tags":["Mailing List","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://seclists.org/bugtraq/2019/Jan/39","tags":["Mailing List","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://security.netapp.com/advisory/ntap-20190502-0004/","tags":["Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://sqlite.org/src/info/940f2adc8541a838","tags":["Vendor Advisory"],"source":"cve@mitre.org"},{"url":"https://support.apple.com/kb/HT209443","tags":["Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://support.apple.com/kb/HT209446","tags":["Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://support.apple.com/kb/HT209447","tags":["Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://support.apple.com/kb/HT209448","tags":["Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://support.apple.com/kb/HT209450","tags":["Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://support.apple.com/kb/HT209451","tags":["Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://usn.ubuntu.com/4019-1/","source":"cve@mitre.org"},{"url":"https://usn.ubuntu.com/4019-2/","source":"cve@mitre.org"},{"url":"https://www.oracle.com/security-alerts/cpuapr2020.html","source":"cve@mitre.org"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00070.html","tags":["Mailing List","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://seclists.org/fulldisclosure/2019/Jan/62","tags":["Mailing List","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://seclists.org/fulldisclosure/2019/Jan/64","tags":["Mailing List","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://seclists.org/fulldisclosure/2019/Jan/66","tags":["Mailing List","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://seclists.org/fulldisclosure/2019/Jan/67","tags":["Mailing List","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://seclists.org/fulldisclosure/2019/Jan/68","tags":["Mailing List","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://seclists.org/fulldisclosure/2019/Jan/69","tags":["Mailing List","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securityfocus.com/bid/106698","tags":["Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://kc.mcafee.com/corporate/index?page=content&id=SB10365","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.debian.org/debian-lts-announce/2020/08/msg00037.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://seclists.org/bugtraq/2019/Jan/28","tags":["Mailing List","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://seclists.org/bugtraq/2019/Jan/29","tags":["Mailing List","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://seclists.org/bugtraq/2019/Jan/31","tags":["Mailing List","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://seclists.org/bugtraq/2019/Jan/32","tags":["Mailing List","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://seclists.org/bugtraq/2019/Jan/33","tags":["Mailing List","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://seclists.org/bugtraq/2019/Jan/39","tags":["Mailing List","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://security.netapp.com/advisory/ntap-20190502-0004/","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://sqlite.org/src/info/940f2adc8541a838","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://support.apple.com/kb/HT209443","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://support.apple.com/kb/HT209446","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://support.apple.com/kb/HT209447","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://support.apple.com/kb/HT209448","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://support.apple.com/kb/HT209450","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://support.apple.com/kb/HT209451","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://usn.ubuntu.com/4019-1/","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://usn.ubuntu.com/4019-2/","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.oracle.com/security-alerts/cpuapr2020.html","source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2018-20506","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."}