{"id":"CVE-2024-3863","title":"The executable file warning was not presented when downloading .xrm-ms files","summary":"The executable file warning was not presented when downloading .xrm-ms files.  \n*Note: This issue only affected Windows operating systems. Other operating systems are unaffected.* This vulnerability affects Firefox < 125, Firefox ESR < 1…","severity":"critical","cvss":9.8,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","cwe":["CWE-434"],"vendor":"mozilla","product":"firefox","affected":["firefox < 115.10.0","firefox < 125.0","thunderbird < 115.10"],"patched":["firefox 125.0","thunderbird 115.10"],"published":"2024-04-16","updated":"2026-11-03","sourceUpdated":"2026-11-03T22:17:22.940","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2024-3863","references":[{"url":"https://bugzilla.mozilla.org/show_bug.cgi?id=1885855","label":"security@mozilla.org"},{"url":"https://www.mozilla.org/security/advisories/mfsa2024-18/","label":"security@mozilla.org"},{"url":"https://www.mozilla.org/security/advisories/mfsa2024-19/","label":"security@mozilla.org"},{"url":"https://www.mozilla.org/security/advisories/mfsa2024-20/","label":"security@mozilla.org"},{"url":"https://bugzilla.mozilla.org/show_bug.cgi?id=1885855","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.mozilla.org/security/advisories/mfsa2024-18/","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.mozilla.org/security/advisories/mfsa2024-19/","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.mozilla.org/security/advisories/mfsa2024-20/","label":"af854a3a-2127-422b-91ae-364da2661108"}],"tags":["nvd","cve.org"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"total","timestamp":"2025-08-22T03:55:42.890384Z"},"epss":0.00812,"epssPercentile":0.57095,"ingestedAt":"2026-11-05T06:38:03.564Z","slug":"CVE-2024-3863","body":"## Overview\n\nThe executable file warning was not presented when downloading .xrm-ms files.  \n*Note: This issue only affected Windows operating systems. Other operating systems are unaffected.* This vulnerability affects Firefox < 125, Firefox ESR < 115.10, and Thunderbird < 115.10.\n\n## Affected\n\n- `firefox < 115.10.0`\n- `firefox < 125.0`\n- `thunderbird < 115.10`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `firefox 125.0`\n- `thunderbird 115.10`","depth":"midnight","depthScore":54,"depthScoreParts":{"impact":53.9,"likelihood":0.2,"exploitation":0,"ransomware":0},"changes":[]}