CVE-2026-12299

None

Open

TLP:CLEAR

JIT miscompilation in the DOM: Core & HTML component

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Description

JIT miscompilation in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Firefox ESR 115.37, Thunderbird 152, and Thunderbird 140.12.

Details

EPSS Score ⓘ: 0.31%

23.1th percentile
Confidence: 90%
Published: Jun 16, 2026
Last Modified: Jul 15, 2026

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