{"cve":"CVE-2019-20917","nvd":{"published":"2020-09-11T05:15:12.480","modified":"2026-06-17T02:31:26.043","status":"Modified","description":"An issue was discovered in InspIRCd 2 before 2.0.28 and 3 before 3.3.0. The mysql module contains a NULL pointer dereference when built against mariadb-connector-c 3.0.5 or newer. When combined with the sqlauth or sqloper modules, this vulnerability can be used for remote crashing of an InspIRCd server by any user able to connect to a server.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","score":6.5},"cwes":["CWE-476"],"references":["https://docs.inspircd.org/security/2019-02/","https://github.com/inspircd/inspircd/commit/2cc35d8625b7ea5cbd1d1ebb116aff86c5280162","https://github.com/inspircd/inspircd/commit/8745660fcdac7c1b80c94cfc0ff60928cd4dd4b7","https://lists.debian.org/debian-lts-announce/2020/09/msg00015.html","https://www.debian.org/security/2020/dsa-4764"],"products":["debian:debian_linux","inspircd:inspircd"],"source":"nvd","synced_at":"2026-10-19T21:09:20.498348299+00:00"},"epss":{"cve":"CVE-2019-20917","score":0.02787,"percentile":0.86408,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}