{"id":"CVE-2025-3028","title":"JavaScript code running while transforming a document with the XSLTProcessor could lead to a use-after-free","summary":"JavaScript code running while transforming a document with the XSLTProcessor could lead to a use-after-free. This vulnerability was fixed in Firefox 137, Firefox ESR 115.22, Firefox ESR 128.9, Thunderbird 137, and Thunderbird 128.9.","severity":"medium","cvss":6.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L","cwe":["CWE-416"],"vendor":"mozilla","product":"firefox","affected":["firefox < 115.22.0","firefox < 137.0","firefox >= 116.0, < 128.9.0","thunderbird < 128.9.0","thunderbird >= 129.0, <= 137.0"],"patched":["firefox 128.9.0","thunderbird 128.9.0"],"published":"2025-04-01","updated":"2026-09-30","sourceUpdated":"2026-09-30T19:10:01.007","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2025-3028","references":[{"url":"https://bugzilla.mozilla.org/show_bug.cgi?id=1941002","label":"security@mozilla.org"},{"url":"https://www.mozilla.org/security/advisories/mfsa2025-20/","label":"security@mozilla.org"},{"url":"https://www.mozilla.org/security/advisories/mfsa2025-21/","label":"security@mozilla.org"},{"url":"https://www.mozilla.org/security/advisories/mfsa2025-22/","label":"security@mozilla.org"},{"url":"https://www.mozilla.org/security/advisories/mfsa2025-23/","label":"security@mozilla.org"},{"url":"https://www.mozilla.org/security/advisories/mfsa2025-24/","label":"security@mozilla.org"},{"url":"https://lists.debian.org/debian-lts-announce/2025/04/msg00005.html","label":"af854a3a-2127-422b-91ae-364da2661108"}],"tags":["nvd"],"epss":0.00855,"epssPercentile":0.56783,"ingestedAt":"2026-09-30T19:21:07.231Z","slug":"CVE-2025-3028","body":"## Overview\n\nJavaScript code running while transforming a document with the XSLTProcessor could lead to a use-after-free. This vulnerability was fixed in Firefox 137, Firefox ESR 115.22, Firefox ESR 128.9, Thunderbird 137, and Thunderbird 128.9.\n\n## Affected\n\n- `firefox < 115.22.0`\n- `firefox < 137.0`\n- `firefox >= 116.0, < 128.9.0`\n- `thunderbird < 128.9.0`\n- `thunderbird >= 129.0, <= 137.0`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `firefox 128.9.0`\n- `thunderbird 128.9.0`","depth":"sunlit","depthScore":36,"depthScoreParts":{"impact":35.8,"likelihood":0.2,"exploitation":0,"ransomware":0},"changes":[]}