CVE-2026-0878

HIGH

8.0

Descripcion

Sandbox escape due to incorrect boundary conditions in the Graphics: CanvasWebGL component. This vulnerability affects Firefox < 147, Firefox ESR < 140.7, Thunderbird < 147, and Thunderbird < 140.7.

Detalles CVE

Puntuacion CVSS v3.18.0

SeveridadHIGH

Vector CVSSCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:N

Vector de ataqueNETWORK

ComplejidadHIGH

Privilegios requeridosNONE

Interaccion usuarioREQUIRED

Publicado1/13/2026

Ultima modificacion1/22/2026

Fuentenvd

Avistamientos honeypot0

Productos afectados

mozilla:firefoxmozilla:thunderbird

Debilidades (CWE)

CWE-20CWE-119

Referencias

https://bugzilla.mozilla.org/show_bug.cgi?id=2003989(security@mozilla.org)

https://www.mozilla.org/security/advisories/mfsa2026-01/(security@mozilla.org)

https://www.mozilla.org/security/advisories/mfsa2026-03/(security@mozilla.org)

https://www.mozilla.org/security/advisories/mfsa2026-04/(security@mozilla.org)

https://www.mozilla.org/security/advisories/mfsa2026-05/(security@mozilla.org)

Correlaciones IOC

Sin correlaciones registradas

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