Reference page — cumulative record through Monday, October 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2021-20227

CVE-2021-20227MEDIUM

n/a sqlite — A flaw was found in SQLite's SELECT query functionality (src/select.c).

  AV  AC  PR  UI  S  C  I  A   CVSS    EPSS   %ile   KEV
   L   L   L   N  U  N  N  H    5.5   .0065   50.3     —

AFFECTED
  Product  Versions         Fixed
  sqlite   sqlite 3.34.1 –  —

TIMELINE
  Dec 17  Reserved by redhat
  Mar 23  Published (CNA: redhat)
  Oct 14  ENRICHED — CVE-2021-20227 (sqlite). Received CVSS 5.5 and CPE data from NVD.

CWE-416 · CNA: redhat · CVSS v3.1 · 9 references · NVD status: Modified

Description

A flaw was found in SQLite's SELECT query functionality (src/select.c). This flaw allows an attacker who is capable of running SQL queries locally on the SQLite database to cause a denial of service or possible code execution by triggering a use-after-free. The highest threat from this vulnerability is to system availability.

Lifecycle

Complete event history — 3 events, chronological
Date	Event	Detail
December 17, 2020	Reserved	Reserved by redhat
March 23, 2021	Published	Published (CNA: redhat)
October 14, 2026	ENRICHED	ENRICHED — CVE-2021-20227 (sqlite). Received CVSS 5.5 and CPE data from NVD.

Affected

Affected products and packages — 1 row
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
n/a	sqlite	—	sqlite 3.34.1	—

Weaknesses

CWE-416

References (9)

https://bugzilla.redhat.com/show_bug.cgi?id=1924886 [Issue Tracking, Third Party Advisory]
https://cert-portal.siemens.com/productcert/html/ssa-398330.html
https://security.gentoo.org/glsa/202103-04 [Third Party Advisory]
https://security.gentoo.org/glsa/202210-40 [Third Party Advisory]
https://security.netapp.com/advisory/ntap-20210423-0010/ [Third Party Advisory]
https://www.oracle.com//security-alerts/cpujul2021.html [Patch, Third Party Advisory]
https://www.oracle.com/security-alerts/cpuApr2021.html [Patch, Third Party Advisory]
https://www.oracle.com/security-alerts/cpuoct2021.html [Patch, Third Party Advisory]
https://www.sqlite.org/releaselog/3_34_1.html [Release Notes, Vendor Advisory]

Authoritative record: CVE-2021-20227 at cve.org

Weaknesses: CWE-416

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2021-20227 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Monday, October 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.