{"cve":"CVE-2018-20506","nvd":{"published":"2019-04-03T18:29:01.313","modified":"2026-06-17T01:52:59.557","status":"Modified","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.","cvss_v4":null,"cvss_v3":{"version":"3.0","vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","score":8.1},"cwes":["CWE-190"],"references":["http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00070.html","http://seclists.org/fulldisclosure/2019/Jan/62","http://seclists.org/fulldisclosure/2019/Jan/64","http://seclists.org/fulldisclosure/2019/Jan/66","http://seclists.org/fulldisclosure/2019/Jan/67"],"products":["apple:icloud","apple:iphone_os","apple:itunes","apple:mac_os_x","apple:tvos","apple:watchos","opensuse:leap","sqlite:sqlite"],"source":"nvd","synced_at":"2026-10-19T20:55:22.313337056+00:00"},"epss":{"cve":"CVE-2018-20506","score":0.07504,"percentile":0.94489,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}