{"id":"CVE-2021-31239","title":"An issue found in SQLite SQLite3 v.3.35.4 that allows a remote attacker to cause a denial of service via the appendvfs.c function.","summary":"An issue found in SQLite SQLite3 v.3.35.4 that allows a remote attacker to cause a denial of service via the appendvfs.c function.","severity":"high","cvss":7.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","cwe":["CWE-125","CWE-125"],"vendor":"sqlite","product":"sqlite","affected":["sqlite = 3.35.4"],"published":"2023-05-09","updated":"2026-10-14","sourceUpdated":"2026-10-14T12:17:11.650","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2021-31239","references":[{"url":"https://github.com/Tsiming/Vulnerabilities/blob/main/SQLite/CVE-2021-31239","label":"cve@mitre.org"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/73XUIHJ6UT75VFPDPLJOXJON7MVIKVZI/","label":"cve@mitre.org"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FXFL4TDAH72PRCPD5UPZMJMKIMVOPLTI/","label":"cve@mitre.org"},{"url":"https://security.gentoo.org/glsa/202311-03","label":"cve@mitre.org"},{"url":"https://security.netapp.com/advisory/ntap-20230609-0010/","label":"cve@mitre.org"},{"url":"https://www.sqlite.org/cves.html","label":"cve@mitre.org"},{"url":"https://www.sqlite.org/forum/forumpost/d9fce1a89b","label":"cve@mitre.org"},{"url":"https://github.com/Tsiming/Vulnerabilities/blob/main/SQLite/CVE-2021-31239","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/73XUIHJ6UT75VFPDPLJOXJON7MVIKVZI/","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FXFL4TDAH72PRCPD5UPZMJMKIMVOPLTI/","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://security.gentoo.org/glsa/202311-03","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://security.netapp.com/advisory/ntap-20230609-0010/","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.sqlite.org/cves.html","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.sqlite.org/forum/forumpost/d9fce1a89b","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://cert-portal.siemens.com/productcert/html/ssa-398330.html","label":"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"},{"url":"https://cert-portal.siemens.com/productcert/html/ssa-472630.html","label":"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"}],"tags":["nvd"],"epss":0.0216,"epssPercentile":0.81739,"ingestedAt":"2026-10-14T12:29:10.830Z","slug":"CVE-2021-31239","body":"## Overview\n\nAn issue found in SQLite SQLite3 v.3.35.4 that allows a remote attacker to cause a denial of service via the appendvfs.c function.\n\n## Affected\n\n- `sqlite = 3.35.4`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":42,"depthScoreParts":{"impact":41.3,"likelihood":0.4,"exploitation":0,"ransomware":0},"changes":[]}