{"id":"CVE-2025-9183","title":"Spoofing issue in the Address Bar component","summary":"Spoofing issue in the Address Bar component. This vulnerability was fixed in Firefox 142 and Firefox ESR 140.2.","severity":"medium","cvss":6.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N","cwe":["CWE-451"],"vendor":"mozilla","product":"firefox","affected":["firefox < 140.2.0","firefox < 142.0"],"patched":["firefox 142.0"],"published":"2025-08-19","updated":"2026-09-30","sourceUpdated":"2026-09-30T18:10:00.190","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2025-9183","references":[{"url":"https://bugzilla.mozilla.org/show_bug.cgi?id=1976102","label":"security@mozilla.org"},{"url":"https://www.mozilla.org/security/advisories/mfsa2025-64/","label":"security@mozilla.org"},{"url":"https://www.mozilla.org/security/advisories/mfsa2025-67/","label":"security@mozilla.org"}],"tags":["nvd"],"epss":0.0026,"epssPercentile":0.1598,"ingestedAt":"2026-09-30T18:17:24.457Z","slug":"CVE-2025-9183","body":"## Overview\n\nSpoofing issue in the Address Bar component. This vulnerability was fixed in Firefox 142 and Firefox ESR 140.2.\n\n## Affected\n\n- `firefox < 140.2.0`\n- `firefox < 142.0`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `firefox 142.0`","depth":"sunlit","depthScore":36,"depthScoreParts":{"impact":35.8,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}