{"id":"CVE-2026-109733","published":"2026-10-13T13:17:23.840","lastModified":"2026-10-15T20:17:07.767","description":"JIT miscompilation in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 158, Firefox ESR 115.43, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.","cvssScore":8.1,"cvssSeverity":"HIGH","cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N","cwes":["CWE-843"],"vendors":[],"products":[],"references":[{"url":"https://bugzilla.mozilla.org/show_bug.cgi?id=2076269","tags":[]},{"url":"https://www.mozilla.org/security/advisories/mfsa2026-106/","tags":[]},{"url":"https://www.mozilla.org/security/advisories/mfsa2026-107/","tags":[]},{"url":"https://www.mozilla.org/security/advisories/mfsa2026-108/","tags":[]},{"url":"https://www.mozilla.org/security/advisories/mfsa2026-109/","tags":[]},{"url":"https://www.mozilla.org/security/advisories/mfsa2026-110/","tags":[]}],"exploitRefs":[],"hasPoc":false,"ai":null}