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cve recordcritical

CVE-2026-74936

mozilla · firefox

Published
CVSS9.8
Severitycritical
WeaknessCWE-416
ExploitedNot in CISA KEV

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Description

Use-after-free in the JavaScript: WebAssembly 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.

References

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Our coverage of CVE-2026-74936

CVE-2026-19478high

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