{"id":"CVE-2019-17026","details":"Incorrect alias information in IonMonkey JIT compiler for setting array elements could lead to a type confusion. We are aware of targeted attacks in the wild abusing this flaw. This vulnerability affects Firefox ESR \u003c 68.4.1, Thunderbird \u003c 68.4.1, and Firefox \u003c 72.0.1.","modified":"2026-03-14T09:32:08.240581Z","published":"2020-03-02T05:15:12.010Z","related":["MGASA-2020-0027","MGASA-2020-0034","SUSE-SU-2020:0068-1","SUSE-SU-2020:0078-1","SUSE-SU-2020:0142-1","SUSE-SU-2020:14268-1","openSUSE-SU-2020:0060-1","openSUSE-SU-2020:0094-1","openSUSE-SU-2024:10600-1","openSUSE-SU-2024:10601-1","openSUSE-SU-2024:14572-1"],"references":[{"type":"WEB","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-17026"},{"type":"ADVISORY","url":"https://security.gentoo.org/glsa/202003-02"},{"type":"ADVISORY","url":"https://usn.ubuntu.com/4335-1/"},{"type":"ADVISORY","url":"https://www.mozilla.org/security/advisories/mfsa2020-03/"},{"type":"ADVISORY","url":"https://www.mozilla.org/security/advisories/mfsa2020-04/"},{"type":"REPORT","url":"https://bugzilla.mozilla.org/show_bug.cgi?id=1607443"},{"type":"EVIDENCE","url":"http://packetstormsecurity.com/files/162568/Firefox-72-IonMonkey-JIT-Type-Confusion.html"}],"affected":[{"database_specific":{"unresolved_ranges":[{"events":[{"introduced":"0"},{"fixed":"68.4.1"}]},{"events":[{"introduced":"0"},{"fixed":"72.0.1"}]},{"events":[{"introduced":"0"},{"fixed":"68.4.1"}]},{"events":[{"introduced":"0"},{"last_affected":"16.04"}]}],"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-17026.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"}]}