{"identifier":"CVE-2019-12874","cve":{"id":"CVE-2019-12874","description":"An issue was discovered in zlib_decompress_extra in modules/demux/mkv/util.cpp in VideoLAN VLC media player 3.x through 3.0.7. The Matroska demuxer, while parsing a malformed MKV file type, has a double free.","published":"2019-06-18T18:15:11.107000+00:00","modified":"2026-11-02T18:18:23.943000+00:00","status":"Modified","score":9.8,"severity":"CRITICAL","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","cvss_version":"3.0","affected":[{"criteria":"cpe:2.3:a:videolan:vlc_media_player:*:*:*:*:*:*:*:*","versionStartIncluding":"3.0.0","versionStartExcluding":"","versionEndIncluding":"3.0.7","versionEndExcluding":""}],"weaknesses":["CWE-415"],"references":[{"url":"http://git.videolan.org/?p=vlc.git%3Ba=commit%3Bh=81023659c7de5ac2637b4a879195efef50846102","source":"cve@mitre.org"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00005.html","source":"cve@mitre.org"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00037.html","source":"cve@mitre.org"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00040.html","source":"cve@mitre.org"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00081.html","source":"cve@mitre.org"},{"url":"http://www.securityfocus.com/bid/108882","source":"cve@mitre.org"},{"url":"https://security.gentoo.org/glsa/201908-23","source":"cve@mitre.org"},{"url":"https://usn.ubuntu.com/4074-1/","source":"cve@mitre.org"},{"url":"http://git.videolan.org/?p=vlc.git%3Ba=commit%3Bh=81023659c7de5ac2637b4a879195efef50846102","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00005.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00037.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00040.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00081.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securityfocus.com/bid/108882","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://security.gentoo.org/glsa/201908-23","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://usn.ubuntu.com/4074-1/","source":"af854a3a-2127-422b-91ae-364da2661108"}],"kev":null,"kev_checked":true,"metrics":{"cvssMetricV30":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.0","vectorString":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","baseScore":9.8,"baseSeverity":"CRITICAL","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"},"exploitabilityScore":3.9,"impactScore":5.9}],"cvssMetricV2":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"2.0","vectorString":"AV:N/AC:L/Au:N/C:P/I:P/A:P","baseScore":7.5,"accessVector":"NETWORK","accessComplexity":"LOW","authentication":"NONE","confidentialityImpact":"PARTIAL","integrityImpact":"PARTIAL","availabilityImpact":"PARTIAL"},"baseSeverity":"HIGH","exploitabilityScore":10.0,"impactScore":6.4,"acInsufInfo":false,"obtainAllPrivilege":false,"obtainUserPrivilege":false,"obtainOtherPrivilege":false,"userInteractionRequired":false}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"timestamp":"2026-11-02T17:32:39.658831Z","id":"CVE-2019-12874","options":[{"exploitation":"none"},{"automatable":"no"},{"technicalImpact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}]},"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:videolan:vlc_media_player:*:*:*:*:*:*:*:*","versionStartIncluding":"3.0.0","versionEndIncluding":"3.0.7","matchCriteriaId":"8FEE589D-9D4E-42BE-B543-68940AE44A05"}]}]}],"source":"nvd","retrieved_at":"2026-11-02T21:31:18.618026+00:00","exploited":false,"kev_stale":false,"products":["videolan / vlc media player"],"priority":{"label":"Critical technical severity","reasons":["CVSS is at least 9.0; exploitation is not established by severity alone.","Fresh EPSS data is unavailable; missing values are not zero."]},"epss":null,"version_assessment":null},"news":[],"campaigns":[],"domains":[{"domain":"git.videolan.org","source_url":"http://git.videolan.org/?p=vlc.git%3Ba=commit%3Bh=81023659c7de5ac2637b4a879195efef50846102","investigate_url":"https://investigate.aeglixmind.com/#git.videolan.org"},{"domain":"lists.opensuse.org","source_url":"http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00005.html","investigate_url":"https://investigate.aeglixmind.com/#lists.opensuse.org"},{"domain":"www.securityfocus.com","source_url":"http://www.securityfocus.com/bid/108882","investigate_url":"https://investigate.aeglixmind.com/#www.securityfocus.com"},{"domain":"security.gentoo.org","source_url":"https://security.gentoo.org/glsa/201908-23","investigate_url":"https://investigate.aeglixmind.com/#security.gentoo.org"},{"domain":"usn.ubuntu.com","source_url":"https://usn.ubuntu.com/4074-1/","investigate_url":"https://investigate.aeglixmind.com/#usn.ubuntu.com"}],"arsenal_url":"https://arsenal.aeglixmind.com/?cve=CVE-2019-12874","catalog_url":"https://cves.aeglixmind.com/cve/CVE-2019-12874","research_url":"https://investigate.aeglixmind.com/research/cve/CVE-2019-12874","coverage":{"news_candidates_checked":0,"campaign_candidates_checked":0,"bounded":false,"notice":"Exact CVE mentions in stored public excerpts and reviewed campaign content only. A mention is not proof of exploitation, attribution or tool suitability. Missing matches do not establish absence."}}