{"id":"CVE-2019-13225","url":"https://www.cyber-defence.io/tools/cve/CVE-2019-13225","generatedAt":"2026-10-28T21:31:50.630Z","title":"A NULL Pointer Dereference in match_at() in regexec.c in Oniguruma 6.9.2 allows attackers to potentially cause denial of service by providing a crafted regular expression.","description":"A NULL Pointer Dereference in match_at() in regexec.c in Oniguruma 6.9.2 allows attackers to potentially cause denial of service by providing a crafted regular expression. Oniguruma issues often affect Ruby, as well as common optional libraries for PHP and Rust.","published":"2019-07-10T14:15:12.000Z","lastModified":"2026-06-17T02:16:20.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"3.1","score":6.5,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"},"cwe":["CWE-476"],"affected":["oniguruma project/oniguruma","fedoraproject/fedora"],"epss":{"score":0.02129,"percentile":0.81859,"date":"2026-10-27","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (2.13%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"https://github.com/kkos/oniguruma/commit/c509265c5f6ae7264f7b8a8aae1cfa5fc59d108c","tags":["Patch","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JWCPDTZOIUKGMFAD5NAKUB7FPJFAIQN5/","source":"cve@mitre.org"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SNL26OZSQRVLEO6JRNUVIMZTICXBNEQW/","source":"cve@mitre.org"},{"url":"https://security.gentoo.org/glsa/201911-03","tags":["Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://github.com/kkos/oniguruma/commit/c509265c5f6ae7264f7b8a8aae1cfa5fc59d108c","tags":["Patch","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JWCPDTZOIUKGMFAD5NAKUB7FPJFAIQN5/","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SNL26OZSQRVLEO6JRNUVIMZTICXBNEQW/","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://security.gentoo.org/glsa/201911-03","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2019-13225","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}