CVE-2026-117951

None

CVSS

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EPSS

0.2%

Published

Oct 27, 2026

CISA due date

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The record

Use-after-free in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.

Affected packages

Ecosystem	Package	Introduced	Fixed