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CVE-2026-12302

Firefox

Description

Mitigation bypass in the DOM: Security component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Firefox ESR 115.37, Thunderbird 152, and Thunderbird 140.12.

CVSS 6.5EPSS 0.248%Risk 0.66
View source
Published
2026-06-16 13:16:30
Affected versions
<152,<140.12,<115.37
Type
Critical software
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N