{"cve":"CVE-2019-19204","nvd":{"published":"2019-11-21T21:15:11.577","modified":"2026-06-17T02:26:17.057","status":"Modified","description":"An issue was discovered in Oniguruma 6.x before 6.9.4_rc2. In the function fetch_interval_quantifier (formerly known as fetch_range_quantifier) in regparse.c, PFETCH is called without checking PEND. This leads to a heap-based buffer over-read.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5},"cwes":["CWE-125"],"references":["https://github.com/ManhNDd/CVE-2019-19204","https://github.com/kkos/oniguruma/issues/162","https://github.com/kkos/oniguruma/releases/tag/v6.9.4_rc2","https://github.com/tarantula-team/CVE-2019-19204","https://lists.debian.org/debian-lts-announce/2019/12/msg00002.html"],"products":["debian:debian_linux","fedoraproject:fedora","oniguruma_project:oniguruma"],"source":"nvd","synced_at":"2026-10-19T20:59:25.448946135+00:00"},"epss":{"cve":"CVE-2019-19204","score":0.06889,"percentile":0.94073,"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."]}