CVE-2026-6754

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"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"}, {"url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-6754.json", "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Secondary", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "description": [{"lang": "en", "value": "CWE-416"}]}, {"type": "Secondary", "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c", "description": [{"lang": "en", "value": "CWE-825"}]}], "descriptions": [{"lang": "en", "value": "Use-after-free in the JavaScript Engine component. This vulnerability was fixed in Firefox 150, Firefox ESR 115.35, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10."}, {"lang": "es", "value": "Uso despu\u00e9s de liberaci\u00f3n en el componente del motor JavaScript. Esta vulnerabilidad se corrigi\u00f3 en Firefox 150, Firefox ESR 115.35, Firefox ESR 140.10, Thunderbird 150 y Thunderbird 140.10."}], "lastModified": "2026-10-25T23:10:00.167", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:mozilla:firefox:*:*:*:*:esr:*:*:*", "vulnerable": true, "matchCriteriaId": "E69D71F5-CAAA-4F28-AB9F-9F898A52D506", "versionEndExcluding": "115.35.0"}, {"criteria": "cpe:2.3:a:mozilla:firefox:*:*:*:*:-:*:*:*", "vulnerable": true, "matchCriteriaId": "67B01D49-66FA-4C76-9EB4-2B8CD61FBEB2", "versionEndExcluding": "150.0"}, {"criteria": "cpe:2.3:a:mozilla:firefox:*:*:*:*:esr:*:*:*", "vulnerable": true, "matchCriteriaId": "528443E0-C15A-4E70-9187-8E1BAAE84A42", "versionEndExcluding": "140.10.0", "versionStartIncluding": "140.0"}, {"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"}