cvedb.io
CVE-2026-4723
CRITICAL · CVSS 9.8
EPSS exploitation probability: 0%
Published 2026-03-24T13:16:08.190 · Last modified 2026-06-17T10:57:07.200

Summary

Use-after-free in the JavaScript Engine component. This vulnerability was fixed in Firefox 149 and Thunderbird 149.

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.