cvedb.io
CVE-2026-2778
CRITICAL · CVSS 10
EPSS exploitation probability: 0%
Published 2026-02-24T14:16:26.230 · Last modified 2026-06-30T03:18:20.000

Summary

Sandbox escape due to incorrect boundary conditions in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.

Affected products

mozilla — firefox

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.