{"id":"CVE-2025-3029","state":"PUBLISHED","title":"URL Bar Spoofing via non-BMP Unicode characters","description":"A crafted URL containing specific Unicode characters could have hidden the true origin of the page, resulting in a potential spoofing attack. This vulnerability was fixed in Firefox 137, Firefox ESR 128.9, Thunderbird 137, and Thunderbird 128.9.","publishedAt":"2025-04-01T12:28:59.386Z","updatedAt":"2026-04-13T14:26:00.288Z","severity":{"score":7.3,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L","source":"CISA-ADP"},"assigner":"mozilla","products":["Mozilla Firefox","Mozilla Thunderbird"],"affected":[{"vendor":"Mozilla","product":"Firefox","versions":[{"version":"128.9","status":"unaffected","lessThanOrEqual":"128.*","versionType":"rpm"},{"version":"137","status":"unaffected","lessThanOrEqual":"*","versionType":"rpm"}]},{"vendor":"Mozilla","product":"Thunderbird","versions":[{"version":"128.9","status":"unaffected","lessThanOrEqual":"128.*","versionType":"rpm"},{"version":"137","status":"unaffected","lessThanOrEqual":"*","versionType":"rpm"}]}],"references":["https://bugzilla.mozilla.org/show_bug.cgi?id=1952213","https://www.mozilla.org/security/advisories/mfsa2025-20/","https://www.mozilla.org/security/advisories/mfsa2025-22/","https://www.mozilla.org/security/advisories/mfsa2025-23/","https://www.mozilla.org/security/advisories/mfsa2025-24/","https://lists.debian.org/debian-lts-announce/2025/04/msg00005.html"],"weaknesses":["CWE-290"],"ingestedAt":"2026-10-29T20:09:09.358Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2025/3xxx/CVE-2025-3029.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2025-3029","state":"PUBLISHED","datePublished":"2025-04-01T12:28:59.386Z","dateUpdated":"2026-04-13T14:26:00.288Z","assignerShortName":"mozilla","assignerOrgId":"f16b083a-5664-49f3-a51e-8d479e5ed7fe","dateReserved":"2025-03-31T09:35:20.446Z"},"containers":{"cna":{"title":"URL Bar Spoofing via non-BMP Unicode characters","descriptions":[{"lang":"en","value":"A crafted URL containing specific Unicode characters could have hidden the true origin of the page, resulting in a potential spoofing attack. This vulnerability was fixed in Firefox 137, Firefox ESR 128.9, Thunderbird 137, and Thunderbird 128.9."}],"affected":[{"vendor":"Mozilla","product":"Firefox","versions":[{"version":"128.9","status":"unaffected","lessThanOrEqual":"128.*","versionType":"rpm"},{"version":"137","status":"unaffected","lessThanOrEqual":"*","versionType":"rpm"}]},{"vendor":"Mozilla","product":"Thunderbird","versions":[{"version":"128.9","status":"unaffected","lessThanOrEqual":"128.*","versionType":"rpm"},{"version":"137","status":"unaffected","lessThanOrEqual":"*","versionType":"rpm"}]}],"references":[{"url":"https://bugzilla.mozilla.org/show_bug.cgi?id=1952213"},{"url":"https://www.mozilla.org/security/advisories/mfsa2025-20/"},{"url":"https://www.mozilla.org/security/advisories/mfsa2025-22/"},{"url":"https://www.mozilla.org/security/advisories/mfsa2025-23/"},{"url":"https://www.mozilla.org/security/advisories/mfsa2025-24/"}],"providerMetadata":{"shortName":"mozilla","orgId":"f16b083a-5664-49f3-a51e-8d479e5ed7fe","dateUpdated":"2026-04-13T14:26:00.288Z"},"credits":[{"lang":"en","value":"Renwa Hiwa"}]},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":7.3,"attackVector":"NETWORK","baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L","integrityImpact":"LOW","userInteraction":"NONE","attackComplexity":"LOW","availabilityImpact":"LOW","privilegesRequired":"NONE","confidentialityImpact":"LOW"}},{"other":{"type":"ssvc","content":{"timestamp":"2025-04-01T18:38:36.495744Z","id":"CVE-2025-3029","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-290","type":"CWE","lang":"en","description":"CWE-290 Authentication Bypass by Spoofing"}]}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2025-04-01T18:39:09.507Z"}},{"title":"CVE Program Container","references":[{"url":"https://lists.debian.org/debian-lts-announce/2025/04/msg00005.html"}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2025-11-03T19:46:49.584Z"}}]}}}