{"id":"CVE-2025-23109","aliases":["EUVD-2025-3123","GHSA-6xcc-hv2v-v4r3"],"status":"published","title":"Address bar spoofing on iOS using long hostnames","description":"Long hostnames in URLs could be leveraged to obscure the actual host of the website or spoof the website address. This vulnerability was fixed in Firefox for iOS 134.","severity":{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N","level":"medium","assessor":"adp","from":"cve"},"epss":{"day":"2026-11-10","score":0.00186,"percentile":0.08287,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-346"],"published":"2025-01-11T03:36:55Z","modified":"2026-10-05T15:10:00Z","products":[{"vendor":"mozilla","product":"firefox"},{"vendor":"mozilla","product":"firefox for ios"}],"references":[{"url":"https://bugzilla.mozilla.org/show_bug.cgi?id=1419275","tags":["Issue Tracking","Permissions Required"]},{"url":"https://www.mozilla.org/security/advisories/mfsa2025-06/","tags":["Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-23109"},{"url":"https://www.mozilla.org/security/advisories/mfsa2025-06"},{"url":"https://github.com/advisories/GHSA-6xcc-hv2v-v4r3"}],"sources":{"cve":[{"id":"CVE-2025-23109","title":"Address bar spoofing on iOS using long hostnames","description":"Long hostnames in URLs could be leveraged to obscure the actual host of the website or spoof the website address. This vulnerability was fixed in Firefox for iOS 134.","status":"published","published":"2025-01-11T03:36:55.235Z","modified":"2026-05-20T14:30:16.952Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N","level":"medium","assessor":"adp"}],"cwes":["CWE-346"],"updated_at":"2026-11-02T14:32:33.410838Z"}],"euvd":[{"id":"EUVD-2025-3123","description":"Long hostnames in URLs could be leveraged to obscure the actual host of the website or spoof the website address. This vulnerability was fixed in Firefox for iOS 134.","status":"published","published":"2025-01-11T03:36:55Z","modified":"2026-05-20T14:30:16Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N","level":"medium"}],"updated_at":"2026-11-02T18:21:14.344818Z"}],"ghsa":[{"id":"GHSA-6xcc-hv2v-v4r3","title":"Long hostnames in URLs could be leveraged to obscure the actual host of the website or spoof the...","description":"Long hostnames in URLs could be leveraged to obscure the actual host of the website or spoof the website address This vulnerability affects Firefox for iOS \u003c 134.","status":"published","published":"2025-01-11T06:30:27Z","modified":"2025-01-13T18:33:01Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N","level":"medium"}],"cwes":["CWE-346"],"updated_at":"2026-11-02T14:59:29.015568Z"}],"nvd":[{"id":"CVE-2025-23109","description":"Long hostnames in URLs could be leveraged to obscure the actual host of the website or spoof the website address. This vulnerability was fixed in Firefox for iOS 134.","status":"published","published":"2025-01-11T04:15:06.367Z","modified":"2026-10-05T15:10:00.59Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N","level":"medium","assessor":"secondary"}],"cwes":["CWE-346"],"updated_at":"2026-11-02T14:10:48.373347Z"}]}}