CVE-2026-6748

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"weaknesses": [{"type": "Secondary", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "description": [{"lang": "en", "value": "CWE-457"}]}, {"type": "Secondary", "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c", "description": [{"lang": "en", "value": "CWE-824"}]}], "descriptions": [{"lang": "en", "value": "Uninitialized memory in the Audio/Video: Web Codecs component. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10."}, {"lang": "es", "value": "Memoria no inicializada en el componente Audio/Video: Web Codecs. Esta vulnerabilidad se corrigi\u00f3 en Firefox 150, Firefox ESR 140.10, Thunderbird 150 y Thunderbird 140.10."}], "lastModified": "2026-10-26T21:10:00.170", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:mozilla:firefox:*:*:*:*:esr:*:*:*", "vulnerable": true, "matchCriteriaId": "15AF037C-5C86-48EB-B1DE-3AC100A34596", "versionEndExcluding": "140.10.0"}, {"criteria": "cpe:2.3:a:mozilla:firefox:*:*:*:*:-:*:*:*", "vulnerable": true, "matchCriteriaId": "67B01D49-66FA-4C76-9EB4-2B8CD61FBEB2", "versionEndExcluding": "150.0"}, {"criteria": "cpe:2.3:a:mozilla:thunderbird:*:*:*:*:esr:*:*:*", "vulnerable": true, "matchCriteriaId": "48217E2F-FFD3-4385-B962-15365B293DA7", "versionEndExcluding": "140.10.0"}], "operator": "OR"}]}], "sourceIdentifier": "security@mozilla.org"}