cvedb.io
CVE-2025-6424
CRITICAL · CVSS 9.8
EPSS exploitation probability: 0%
Published 2025-06-24T13:15:23.273 · Last modified 2026-06-17T10:01:51.673

Summary

A use-after-free in FontFaceSet resulted in a potentially exploitable crash. This vulnerability was fixed in Firefox 140, Firefox ESR 115.25, Firefox ESR 128.12, Thunderbird 140, and Thunderbird 128.12.

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.