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CVE-2026-4723

—
CVSS 3.1
9.8 critical
EPSS
<1%p33
Published
()
Modified
Description

Use-after-free in the JavaScript Engine component. This vulnerability was fixed in Firefox 149 and Thunderbird 149.

Vendors
mozilla
Products
firefox
Weakness
CWE-416
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD CVE.org GitHub PoCs EPSS (0.4%)

In the news

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