cvedb.io
CVE-2021-38504
HIGH · CVSS 8.8
EPSS exploitation probability: 0%
Published 2021-12-08T22:15:08.790 · Last modified 2026-06-17T04:02:14.540

Summary

When interacting with an HTML input element's file picker dialog with webkitdirectory set, a use-after-free could have resulted, leading to memory corruption and a potentially exploitable crash. This vulnerability affects Firefox < 94, Thunderbird < 91.3, and Firefox ESR < 91.3.

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.