CVE-2020-11656

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

9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS

8.7% chance of exploitation in the next 30 days; higher than 95% of CVEs (scores of 2026-10-25)

CWE

CWE-416

Published

2020-04-09

Modified

2026-10-14

Record from

the NVD, synced 2026-10-19

Affected

• netapp:ontap_select_deploy_administration_utility
• oracle:communications_messaging_server
• oracle:communications_network_charging_and_control
• oracle:enterprise_manager_ops_center
• oracle:hyperion_infrastructure_technology
• oracle:mysql
• oracle:mysql_workbench
• oracle:outside_in_technology
• oracle:zfs_storage_appliance_kit
• siemens:sinec_infrastructure_network_services
• sqlite:sqlite
• tenable:tenable.sc

References

• https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf
• https://security.FreeBSD.org/advisories/FreeBSD-SA-20:22.sqlite.asc
• https://security.gentoo.org/glsa/202007-26
• https://security.netapp.com/advisory/ntap-20200416-0001/
• https://www.oracle.com/security-alerts/cpuApr2021.html

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