{"id":"CVE-2020-11656","aliases":["AZL-38947","BIT-sqlite-2020-11656","DEBIAN-CVE-2020-11656","EUVD-2020-3999","GHSA-x2v5-p27f-53wp"],"status":"published","title":"In SQLite through 3.31.1, the ALTER TABLE implementation has a use-after-free, as demonstrated by...","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.","severity":{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-10","score":0.08723,"percentile":0.95185,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-416"],"published":"2020-04-09T02:49:18Z","modified":"2026-10-26T12:01:20Z","fixes":[{"ecosystem":"Azure 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s7-1500 cpu 1518-4 pn/dp mfp"},{"vendor":"siemens","product":"simatic s7-1500 cpu 1518f-4 pn/dp mfp"},{"vendor":"siemens","product":"sinec_infrastructure_network_services"},{"vendor":"siemens","product":"siplus s7-1500 cpu 1518-4 pn/dp mfp"},{"vendor":"sqlite","product":"sqlite"},{"vendor":"tenable","product":"tenable.sc"}],"references":[{"url":"https://www.oracle.com/security-alerts/cpujul2020.html","tags":["x_refsource_MISC","x_transferred","Third Party Advisory","advisory"]},{"url":"https://security.netapp.com/advisory/ntap-20200416-0001/","tags":["x_refsource_CONFIRM","x_transferred","Third Party Advisory","advisory"]},{"url":"https://www3.sqlite.org/cgi/src/info/b64674919f673602","tags":["x_refsource_MISC","x_transferred","Patch","Vendor Advisory","advisory","fix"]},{"url":"https://www.sqlite.org/src/info/d09f8c3621d5f7f8","tags":["x_refsource_MISC","x_transferred","Patch","Vendor 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statement.","status":"published","published":"2020-04-09T02:49:18Z","modified":"2026-10-14T09:06:49.203Z","updated_at":"2026-11-02T14:35:57.67317Z"}],"euvd":[{"id":"EUVD-2020-3999","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.","status":"published","published":"2020-04-09T02:49:18Z","modified":"2026-10-14T09:06:49Z","updated_at":"2026-11-02T17:27:17.374818Z"}],"ghsa":[{"id":"GHSA-x2v5-p27f-53wp","title":"In SQLite through 3.31.1, the ALTER TABLE implementation has a use-after-free, as demonstrated by...","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 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18.2.1-1","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.","status":"published","published":"2020-04-09T03:15:11Z","modified":"2026-04-21T04:49:51.489248Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T15:28:04.608733Z"},{"id":"CVE-2020-11656","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.","status":"published","published":"2020-04-09T03:15:11.41Z","modified":"2026-10-24T10:31:01.053281337Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T15:44:14.034736Z"},{"id":"DEBIAN-CVE-2020-11656","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.","status":"published","published":"2020-04-09T03:15:11.41Z","modified":"2026-10-26T12:01:20.770419639Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T15:45:32.862554Z"},{"id":"BIT-sqlite-2020-11656","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.","status":"published","published":"2024-03-06T11:08:29.077Z","modified":"2026-10-16T09:45:32.042786035Z","updated_at":"2026-11-02T15:28:35.111822Z"}]}}