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CVE-2026-74976

Firefox

Description

JIT miscompilation in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 154, Firefox ESR 140.14, Firefox ESR 153.1, Thunderbird 154, Thunderbird 140.14, and Thunderbird 153.1.

CVSS 6.5EPSS 0.32%Risk 0.67
View source
Published
2026-08-18 13:17:35
Affected versions
<154
Type
Web application
Last modified
2026-08-19 15:24:04
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N