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Cve-2026-4708

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high advisory

Mozilla Firefox and Thunderbird Graphics Component Vulnerability (CVE-2026-4708)

CVE-2026-4708 is a high-severity vulnerability involving incorrect boundary conditions in the Graphics component, impacting Firefox versions earlier than 149, Firefox ESR versions before 140.9, Thunderbird versions before 149, and Thunderbird versions prior to 140.9, potentially leading to a denial-of-service.

Firefox +1 cve-2026-4708 thunderbird denial-of-service
2r 1t