{"id":"CVE-2019-16163","url":"https://www.cyber-defence.io/tools/cve/CVE-2019-16163","generatedAt":"2026-10-28T21:34:45.835Z","title":"Oniguruma before 6.9.3 allows Stack Exhaustion in regcomp.c because of recursion in regparse.c.","description":"Oniguruma before 6.9.3 allows Stack Exhaustion in regcomp.c because of recursion in regparse.c.","published":"2019-09-09T17:15:13.000Z","lastModified":"2026-06-17T02:21:48.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"3.1","score":7.5,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},"cwe":["CWE-674"],"affected":["oniguruma project/oniguruma","fedoraproject/fedora","debian/debian linux","canonical/ubuntu linux"],"epss":{"score":0.02752,"percentile":0.86145,"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":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (2.75%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"https://github.com/kkos/oniguruma/commit/4097828d7cc87589864fecf452f2cd46c5f37180","tags":["Patch"],"source":"cve@mitre.org"},{"url":"https://github.com/kkos/oniguruma/compare/v6.9.2...v6.9.3","tags":["Patch","Release Notes"],"source":"cve@mitre.org"},{"url":"https://github.com/kkos/oniguruma/issues/147","tags":["Exploit","Issue Tracking","Patch","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://lists.debian.org/debian-lts-announce/2019/09/msg00010.html","tags":["Mailing List","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NWOWZZNFSAWM3BUTQNAE3PD44A6JU4KE/","source":"cve@mitre.org"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZW47MSFZ6WYOAOFXHBDGU4LYACFRKC2Y/","source":"cve@mitre.org"},{"url":"https://usn.ubuntu.com/4460-1/","tags":["Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://github.com/kkos/oniguruma/commit/4097828d7cc87589864fecf452f2cd46c5f37180","tags":["Patch"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://github.com/kkos/oniguruma/compare/v6.9.2...v6.9.3","tags":["Patch","Release Notes"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://github.com/kkos/oniguruma/issues/147","tags":["Exploit","Issue Tracking","Patch","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.debian.org/debian-lts-announce/2019/09/msg00010.html","tags":["Mailing List","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NWOWZZNFSAWM3BUTQNAE3PD44A6JU4KE/","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZW47MSFZ6WYOAOFXHBDGU4LYACFRKC2Y/","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://usn.ubuntu.com/4460-1/","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2019-16163","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."}