cvedb.io
CVE-2025-1020
CRITICAL · CVSS 9.8
EPSS exploitation probability: 0%
Published 2025-02-04T14:15:32.953 · Last modified 2026-06-17T08:38:14.650

Summary

Memory safety bugs present in Firefox 134 and Thunderbird 134. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 135 and Thunderbird 135.

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.