Firefox vulnerability

Sandbox escape in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 156, Firefox ESR 115.41, Firefox ESR 140.16, Firefox ESR 153.3, Thunderbird 156, Thunderbird 140.16, and Thunderbird 153.3.

Published 15 Sep 2026Updated 6 Oct 20268 sources
CVSS 9.6

Source timeline

CVE record published by NVDView source ↗