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{"cveTags": [], "descriptions": [{"lang": "en", "value": "Sandbox escape due to incorrect boundary conditions in the Widget: Win32 component. This vulnerability was fixed in Firefox 151 and Firefox ESR 140.11."}], "id": "CVE-2026-8959", "lastModified": "2026-05-19T14:23:47.477", "metrics": {}, "published": "2026-05-19T14:16:52.280", "references": [{"source": "security@mozilla.org", "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=2034754"}, {"source": "security@mozilla.org", "url": "https://www.mozilla.org/security/advisories/mfsa2026-46/"}, {"source": "security@mozilla.org", "url": "https://www.mozilla.org/security/advisories/mfsa2026-48/"}], "sourceIdentifier": "security@mozilla.org", "vulnStatus": "Undergoing Analysis"}

{}

{"created": "2026-05-19T15:00:10.592211+00:00", "updated": "2026-05-19T15:00:10.592224+00:00", "vendors": [], "weaknesses": ["CWE-20", "CWE-120"]}