Vulnerabilities
CVE-2026-8959: Firefox Sandbox Escape via Win32 Boundary Flaw
CVE-2026-8959 (CVSS 9.6) allows sandbox escape through incorrect boundary conditions in Firefox's Widget:Win32 component. Fixed in Firefox 151, ESR 140.11, and Thunderbird 151.
CVE-2026-8959CVE-2026-8954
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