{"api_version":"1","generated_at":"2026-10-28T03:32:54+00:00","cve":"CVE-2026-117961","urls":{"html":"https://cve.report/CVE-2026-117961","api":"https://cve.report/api/cve/CVE-2026-117961.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-117961","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-117961"},"summary":{"title":"Incorrect boundary conditions in the Layout: Text and Fonts component","description":"Incorrect boundary conditions in the Layout: Text and Fonts component. This vulnerability was fixed in Firefox 159, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.","state":"PUBLISHED","assigner":"mozilla","published_at":"2026-10-27 14:16:52","updated_at":"2026-10-27 19:17:21"},"problem_types":[],"metrics":[],"references":[{"url":"https://www.mozilla.org/security/advisories/mfsa2026-118/","name":"https://www.mozilla.org/security/advisories/mfsa2026-118/","refsource":"security@mozilla.org","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://bugzilla.mozilla.org/show_bug.cgi?id=2068458","name":"https://bugzilla.mozilla.org/show_bug.cgi?id=2068458","refsource":"security@mozilla.org","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.mozilla.org/security/advisories/mfsa2026-122/","name":"https://www.mozilla.org/security/advisories/mfsa2026-122/","refsource":"security@mozilla.org","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.mozilla.org/security/advisories/mfsa2026-120/","name":"https://www.mozilla.org/security/advisories/mfsa2026-120/","refsource":"security@mozilla.org","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.mozilla.org/security/advisories/mfsa2026-121/","name":"https://www.mozilla.org/security/advisories/mfsa2026-121/","refsource":"security@mozilla.org","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-117961","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-117961","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Mozilla","product":"Firefox","version":"unaffected 153.6 153.* rpm","platforms":[]},{"source":"CNA","vendor":"Mozilla","product":"Firefox","version":"unaffected 159 * rpm","platforms":[]},{"source":"CNA","vendor":"Mozilla","product":"Thunderbird","version":"unaffected 153.6 153.* rpm","platforms":[]},{"source":"CNA","vendor":"Mozilla","product":"Thunderbird","version":"unaffected 159 * rpm","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[{"source":"CNA","value":"Mozilla","lang":"en"}],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"product":"Firefox","vendor":"Mozilla","versions":[{"lessThanOrEqual":"153.*","status":"unaffected","version":"153.6","versionType":"rpm"},{"lessThanOrEqual":"*","status":"unaffected","version":"159","versionType":"rpm"}]},{"product":"Thunderbird","vendor":"Mozilla","versions":[{"lessThanOrEqual":"153.*","status":"unaffected","version":"153.6","versionType":"rpm"},{"lessThanOrEqual":"*","status":"unaffected","version":"159","versionType":"rpm"}]}],"credits":[{"lang":"en","value":"Mozilla"}],"descriptions":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"Incorrect boundary conditions in the Layout: Text and Fonts component. This vulnerability was fixed in Firefox 159, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6."}],"value":"Incorrect boundary conditions in the Layout: Text and Fonts component. This vulnerability was fixed in Firefox 159, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6."}],"providerMetadata":{"dateUpdated":"2026-10-27T18:29:44.557Z","orgId":"f16b083a-5664-49f3-a51e-8d479e5ed7fe","shortName":"mozilla"},"references":[{"url":"https://bugzilla.mozilla.org/show_bug.cgi?id=2068458"},{"url":"https://www.mozilla.org/security/advisories/mfsa2026-118/"},{"url":"https://www.mozilla.org/security/advisories/mfsa2026-120/"},{"url":"https://www.mozilla.org/security/advisories/mfsa2026-121/"},{"url":"https://www.mozilla.org/security/advisories/mfsa2026-122/"}],"title":"Incorrect boundary conditions in the Layout: Text and Fonts component"}},"cveMetadata":{"assignerOrgId":"f16b083a-5664-49f3-a51e-8d479e5ed7fe","assignerShortName":"mozilla","cveId":"CVE-2026-117961","datePublished":"2026-10-27T14:05:40.723Z","dateReserved":"2026-10-27T14:05:40.550Z","dateUpdated":"2026-10-27T18:29:44.557Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-10-27 14:16:52","lastModifiedDate":"2026-10-27 19:17:21","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"117961","Ordinal":"1","Title":"Incorrect boundary conditions in the Layout: Text and Fonts comp","CVE":"CVE-2026-117961","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"117961","Ordinal":"1","NoteData":"Incorrect boundary conditions in the Layout: Text and Fonts component. This vulnerability was fixed in Firefox 159, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.","Type":"Description","Title":"Incorrect boundary conditions in the Layout: Text and Fonts comp"}]}}}