{"id":"CVE-2025-14325","title":"JIT miscompilation in the JavaScript Engine: JIT component","summary":"JIT miscompilation in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 146, Firefox ESR 140.6, Thunderbird 146, and Thunderbird 140.6.","severity":"high","cvss":7.3,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L","cwe":["CWE-843"],"vendor":"mozilla","product":"firefox","affected":["firefox < 140.6.0","firefox < 146.0","thunderbird < 140.6.0","thunderbird < 146.0"],"patched":["firefox 146.0","thunderbird 146.0"],"published":"2025-12-09","updated":"2026-09-30","sourceUpdated":"2026-09-30T17:10:00.187","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2025-14325","references":[{"url":"https://bugzilla.mozilla.org/show_bug.cgi?id=1998050","label":"security@mozilla.org"},{"url":"https://www.mozilla.org/security/advisories/mfsa2025-92/","label":"security@mozilla.org"},{"url":"https://www.mozilla.org/security/advisories/mfsa2025-94/","label":"security@mozilla.org"},{"url":"https://www.mozilla.org/security/advisories/mfsa2025-95/","label":"security@mozilla.org"},{"url":"https://www.mozilla.org/security/advisories/mfsa2025-96/","label":"security@mozilla.org"}],"tags":["nvd","exploit-available"],"epss":0.00342,"epssPercentile":0.25286,"exploits":{"github":1,"githubRepos":["https://github.com/WostGit/cve-2025-14325-full-repro"],"checkedAt":"2026-09-30T17:13:56.196Z"},"exploitAvailable":true,"ingestedAt":"2026-09-30T17:13:20.755Z","slug":"CVE-2025-14325","body":"## Overview\n\nJIT miscompilation in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 146, Firefox ESR 140.6, Thunderbird 146, and Thunderbird 140.6.\n\n## Affected\n\n- `firefox < 140.6.0`\n- `firefox < 146.0`\n- `thunderbird < 140.6.0`\n- `thunderbird < 146.0`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `firefox 146.0`\n- `thunderbird 146.0`","depth":"midnight","depthScore":52,"depthScoreParts":{"impact":40.2,"likelihood":0.1,"exploitation":12,"ransomware":0},"changes":[]}