CVE Watch21 ago 2026

CVE-2026-74941

Privilege escalation in the Graphics: CanvasWebGL component. This vulnerability was fixed in Firefox 154, Firefox ESR 140.14, Firefox ESR 15

CVSS

8.8

Alto

EPSS

0.3%

p25

KEV

—

Exploit Today

0-100

Publicado: 18 ago 2026 · Última mod.: 21 ago 2026 · CWE-269

EPSS · 30d

0.3%EPSS · 30 días0.3%

2026-08-192026-09-13

Descripción técnica

Privilege escalation in the Graphics: CanvasWebGL component. This vulnerability was fixed in Firefox 154, Firefox ESR 140.14, Firefox ESR 153.1, Thunderbird 154, Thunderbird 140.14, and Thunderbird 153.1.

Referencias oficiales

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