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Vulnerability record · CVE-2020-11656 · published 9 April 2020

CVE-2020-11656: Sqlite use after free vulnerability

Sqlite · Sqlite

In SQLite through 3.31.1, the ALTER TABLE implementation has a use-after-free, as demonstrated by an ORDER BY clause that belongs to a compound SELECT statement.

9.8 CVSS 3.1 Critical EPSS 7.6% · top 5.7% CWE-416 · Use after free
9.8CVSS 3.1 base score, v2 7.5
7.6%EPSS exploitation probability, 30 days
NoNot in CISA KEV
12Affected product versions listed by NVD
22References
17 Jun 2026Last modified by NVD

Description

In SQLite through 3.31.1, the ALTER TABLE implementation has a use-after-free, as demonstrated by an ORDER BY clause that belongs to a compound SELECT statement.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

12 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf PatchThird Party Advisory
https://security.FreeBSD.org/advisories/FreeBSD-SA-20:22.sqlite.asc Third Party Advisory
https://security.gentoo.org/glsa/202007-26 Third Party Advisory
https://security.netapp.com/advisory/ntap-20200416-0001/ Third Party Advisory
https://www.oracle.com/security-alerts/cpuApr2021.html Third Party Advisory
https://www.oracle.com/security-alerts/cpujan2021.html Third Party Advisory
https://www.oracle.com/security-alerts/cpujul2020.html Third Party Advisory
https://www.oracle.com/security-alerts/cpuoct2020.html Third Party Advisory
https://www.sqlite.org/src/info/d09f8c3621d5f7f8 PatchVendor Advisory
https://www.tenable.com/security/tns-2021-14 Release NotesThird Party Advisory
https://www3.sqlite.org/cgi/src/info/b64674919f673602 PatchVendor Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf PatchThird Party Advisory
https://security.FreeBSD.org/advisories/FreeBSD-SA-20:22.sqlite.asc Third Party Advisory
https://security.gentoo.org/glsa/202007-26 Third Party Advisory
https://security.netapp.com/advisory/ntap-20200416-0001/ Third Party Advisory
https://www.oracle.com/security-alerts/cpuApr2021.html Third Party Advisory
https://www.oracle.com/security-alerts/cpujan2021.html Third Party Advisory
https://www.oracle.com/security-alerts/cpujul2020.html Third Party Advisory
https://www.oracle.com/security-alerts/cpuoct2020.html Third Party Advisory
https://www.sqlite.org/src/info/d09f8c3621d5f7f8 PatchVendor Advisory
https://www.tenable.com/security/tns-2021-14 Release NotesThird Party Advisory
https://www3.sqlite.org/cgi/src/info/b64674919f673602 PatchVendor Advisory

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Source: NIST National Vulnerability Database (record CVE-2020-11656), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.