High 8.1Published Apr 3, 2019

CVE-2018-20506SQLite 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 F…

Updated under an hour ago (Nov 2, 2026, 1:40 AM ET)

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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: 8.1 HIGH (v3.0, NVD)CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE): CWE-190
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Not given
NVD analysis: Modified
Record last updated: Jun 16, 2026
First seen by InfoSec Signals: Nov 1, 2026

Affected products

Affected products

sqlite sqlite sqlite:sqlite	before 3.25.3	NVD
apple iphone_os apple:iphone_os	before 12.1.3	NVD
apple mac_os_x apple:mac_os_x	before 10.14.3	NVD
apple tvos apple:tvos	before 12.1.2	NVD
apple watchos apple:watchos	before 5.1.3	NVD
apple icloud apple:icloud	through 7.10	NVD
apple itunes apple:itunes	through 12.9.3	NVD
opensuse leap opensuse:leap	42.3	NVD

References

References

http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00070.html	mailing-list, third-party-advisory
http://seclists.org/fulldisclosure/2019/Jan/62	mailing-list, third-party-advisory
http://seclists.org/fulldisclosure/2019/Jan/64	mailing-list, third-party-advisory
http://seclists.org/fulldisclosure/2019/Jan/66	mailing-list, third-party-advisory
http://seclists.org/fulldisclosure/2019/Jan/67	mailing-list, third-party-advisory
http://seclists.org/fulldisclosure/2019/Jan/68	mailing-list, third-party-advisory
http://seclists.org/fulldisclosure/2019/Jan/69	mailing-list, third-party-advisory
http://www.securityfocus.com/bid/106698	third-party-advisory, vdb-entry
https://kc.mcafee.com/corporate/index?page=content&id=SB10365
https://lists.debian.org/debian-lts-announce/2020/08/msg00037.html
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The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.