CVE-2026-0879

None

Open

TLP:CLEAR

Sandbox escape due to incorrect boundary conditions in the Graphics component

NVD CVE.org

Critical Infrastructure

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Description

Sandbox escape due to incorrect boundary conditions in the Graphics component. This vulnerability was fixed in Firefox 147, Firefox ESR 115.32, Firefox ESR 140.7, Thunderbird 147, and Thunderbird 140.7.

Details

EPSS Score ⓘ: 0.55%

43th percentile
Confidence: 90%
Published: Jan 13, 2026
Last Modified: Jul 15, 2026

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