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// CVE · PUBLISHED 2026-04-21

CVE-2026-6771

Mozilla / Firefox · Mozilla / Thunderbird

9.8 · CVSS 3.1Critical

Description

Mitigation bypass in the DOM: Security component. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10.

References

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This product uses the NVD API but is not endorsed or certified by the NVD. CVSS scores do not establish exploitation.