CVE-2026-6762

MEDIO 6.3CVE-2026-6762 · Published 21/04/2026 · updated 26/10/2026

En resumen

CVE-2026-6762 es una vulnerabilidad MEDIO (CVSS 6.3) que afecta a firefox (mozilla), thunderbird (mozilla).
Probabilidad de explotación en los próximos 30 días (EPSS): 0.19%, mayor que el 8.4% de las vulnerabilidades.
Solución: actualizar a 140.10.0, 150.0 o posterior.

Package	Affected versions	Patched versions
firefox mozilla	`< 140.10.0< 150.0`	`140.10.0150.0`
thunderbird mozilla	`≥ 140.0, < 140.10.0`	`140.10.0`

Description

Spoofing issue in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 150, Firefox ESR 115.35, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10.

References

bugzilla.mozilla.org/show_bug.cgi · Permissions Required
mozilla.org/security/advisories/mfsa2026-30 · Vendor Advisory
mozilla.org/security/advisories/mfsa2026-31 · Vendor Advisory
mozilla.org/security/advisories/mfsa2026-32 · Vendor Advisory
mozilla.org/security/advisories/mfsa2026-33 · Vendor Advisory
mozilla.org/security/advisories/mfsa2026-34 · Vendor Advisory

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Package

Affected versions

Patched versions

firefox

mozilla

< 140.10.0< 150.0

140.10.0150.0

thunderbird

mozilla

≥ 140.0, < 140.10.0

140.10.0

Más vulnerabilidades de firefox

Ver todo →