CVE Watch13 oct 2026

CVE-2026-109763

Mitigation bypass in the File Handling component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thund

CVSS

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Sin CVSS

EPSS

0.2%

KEV

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Exploit Today

0-100

Publicado: 13 oct 2026 · Última mod.: 13 oct 2026

EPSS · 30d

0.2%EPSS · 30 días0.2%

2026-10-142026-10-22

Descripción técnica

Mitigation bypass in the File Handling component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.

Referencias oficiales

bugzilla.mozilla.orghttps://bugzilla.mozilla.org/show_bug.cgi?id=2072501
www.mozilla.orghttps://www.mozilla.org/security/advisories/mfsa2026-106/
www.mozilla.orghttps://www.mozilla.org/security/advisories/mfsa2026-108/
www.mozilla.orghttps://www.mozilla.org/security/advisories/mfsa2026-109/
www.mozilla.orghttps://www.mozilla.org/security/advisories/mfsa2026-110/

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